Dartium 45 roll

tools/dom/dom.json

 {
   "ANGLEInstancedArrays": {
     "members": {
       "VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE": {
         "support_level": "untriaged"
       },
       "drawArraysInstancedANGLE": {
         "support_level": "untriaged"
       },
       "drawElementsInstancedANGLE": {
@@ skipping 70 matching lines @@
         "support_level": "untriaged"
       },
       "maxDecibels": {},
       "minDecibels": {},
       "smoothingTimeConstant": {}
     },
     "support_level": "experimental"
   },
   "Animation": {
     "members": {
-      "Animation": {}
+      "Animation": {},

[Alan Knight, 2016/02/09 18:45:51]

Is this file changed because of regenerating the html libraries? But I think it
probably doesn't matter, because I don't think anything uses this file any more.

+      "cancel": {
+        "support_level": "untriaged"
+      },
+      "currentTime": {
+        "support_level": "untriaged"
+      },
+      "effect": {
+        "support_level": "untriaged"
+      },
+      "endClip": {
+        "support_level": "untriaged"
+      },
+      "finish": {
+        "support_level": "untriaged"
+      },
+      "finished": {
+        "support_level": "untriaged"
+      },
+      "pause": {
+        "support_level": "untriaged"
+      },
+      "play": {
+        "support_level": "untriaged"
+      },
+      "playState": {
+        "support_level": "untriaged"
+      },
+      "playbackRate": {
+        "support_level": "untriaged"
+      },
+      "ready": {
+        "support_level": "untriaged"
+      },
+      "reverse": {
+        "support_level": "untriaged"
+      },
+      "startClip": {
+        "support_level": "untriaged"
+      },
+      "startTime": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "untriaged"
   },
   "AnimationEffect": {
     "members": {},
     "support_level": "untriaged"
   },
+  "AnimationEffectReadOnly": {
+    "members": {
+      "computedTiming": {
+        "support_level": "untriaged"
+      },
+      "timing": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "AnimationEffectTiming": {
+    "members": {
+      "delay": {
+        "support_level": "untriaged"
+      },
+      "direction": {
+        "support_level": "untriaged"
+      },
+      "duration": {
+        "support_level": "untriaged"
+      },
+      "easing": {
+        "support_level": "untriaged"
+      },
+      "endDelay": {
+        "support_level": "untriaged"
+      },
+      "fill": {
+        "support_level": "untriaged"
+      },
+      "iterationStart": {
+        "support_level": "untriaged"
+      },
+      "iterations": {
+        "support_level": "untriaged"
+      },
+      "playbackRate": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "AnimationEvent": {
+    "members": {
+      "AnimationEvent": {},
+      "animationName": {
+        "support_level": "untriaged"
+      },
+      "elapsedTime": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "AnimationNode": {
     "members": {
       "activeDuration": {
         "support_level": "untriaged"
       },
       "currentIteration": {
         "support_level": "untriaged"
       },
       "duration": {
         "support_level": "untriaged"
@@ skipping 55 matching lines @@
         "support_level": "untriaged"
       },
       "timeLag": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "AnimationPlayerEvent": {
     "members": {
+      "AnimationPlayerEvent": {},
       "currentTime": {
         "support_level": "untriaged"
       },
       "timelineTime": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "AnimationTimeline": {
     "members": {
       "currentTime": {
         "support_level": "untriaged"
       },
       "getAnimationPlayers": {
         "support_level": "untriaged"
       },
+      "getAnimations": {
+        "support_level": "untriaged"
+      },
       "play": {
         "support_level": "untriaged"
+      },
+      "playbackRate": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
+  },
+  "AppBannerPromptResult": {
+    "members": {
+      "outcome": {
+        "support_level": "untriaged"
+      },
+      "platform": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
   },
   "ApplicationCache": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html#application-cache-api",
     "dart_action": "unstable",
     "members": {
       "CHECKING": {},
       "DOWNLOADING": {},
       "IDLE": {},
       "OBSOLETE": {},
       "UNCACHED": {},
@@ skipping 11 matching lines @@
       "onupdateready": {},
       "removeEventListener": {},
       "status": {},
       "swapCache": {},
       "update": {}
     },
     "support_level": "stable"
   },
   "ApplicationCacheErrorEvent": {
     "members": {
+      "ApplicationCacheErrorEvent": {},
       "message": {
         "support_level": "untriaged"
       },
       "reason": {
         "support_level": "untriaged"
       },
       "status": {
         "support_level": "untriaged"
       },
       "url": {
@@ skipping 44 matching lines @@
       "textContent": {
         "support_level": "untriaged"
       },
       "value": {}
     },
     "support_level": "stable"
   },
   "AudioBuffer": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioBuffer-section",
     "members": {
+      "copyFromChannel": {
+        "support_level": "untriaged"
+      },
+      "copyToChannel": {
+        "support_level": "untriaged"
+      },
       "duration": {},
       "gain": {},
       "getChannelData": {},
       "length": {},
       "numberOfChannels": {},
       "sampleRate": {}
     },
     "support_level": "experimental"
   },
   "AudioBufferCallback": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioBuffer-section",
     "members": {
       "handleEvent": {}
     },
     "support_level": "experimental"
   },
   "AudioBufferSourceNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioBufferSourceNode-section",
     "members": {
       "FINISHED_STATE": {},
       "PLAYING_STATE": {},
       "SCHEDULED_STATE": {},
       "UNSCHEDULED_STATE": {},
       "buffer": {},
+      "detune": {
+        "support_level": "untriaged"
+      },
       "gain": {},
       "loop": {},
       "loopEnd": {},
       "loopStart": {},
       "noteGrainOn": {},
       "noteOff": {},
       "noteOn": {},
       "onended": {
         "support_level": "untriaged"
       },
       "playbackRate": {},
       "playbackState": {},
       "start": {},
       "stop": {}
     },
     "support_level": "experimental"
   },
   "AudioContext": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioContext-section",
     "members": {
       "AudioContext": {},
       "activeSourceCount": {},
       "addEventListener": {
         "support_level": "untriaged"
       },
+      "close": {
+        "support_level": "untriaged"
+      },
       "createAnalyser": {},
       "createBiquadFilter": {},
       "createBuffer": {},
       "createBufferFromBuffer": {},
       "createBufferSource": {},
       "createChannelMerger": {},
       "createChannelSplitter": {},
       "createConvolver": {},
       "createDelay": {},
       "createDelayNode": {},
       "createDynamicsCompressor": {},
       "createEmptyBuffer": {},
       "createGain": {},
       "createGainNode": {},
       "createJavaScriptNode": {},
       "createMediaElementSource": {},
       "createMediaStreamDestination": {},
       "createMediaStreamSource": {},
       "createOscillator": {},
       "createPanner": {},
       "createPeriodicWave": {
         "support_level": "untriaged"
       },
       "createScriptProcessor": {},
+      "createStereoPanner": {
+        "support_level": "untriaged"
+      },
       "createWaveShaper": {},
       "createWaveTable": {},
       "currentTime": {},
       "decodeAudioData": {},
       "destination": {},
       "dispatchEvent": {
         "support_level": "untriaged"
       },
       "listener": {},
       "oncomplete": {},
       "removeEventListener": {
         "support_level": "untriaged"
       },
+      "resume": {
+        "support_level": "untriaged"
+      },
       "sampleRate": {},
-      "startRendering": {}
+      "startRendering": {},
+      "state": {
+        "support_level": "untriaged"
+      },
+      "suspend": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "experimental"
   },
   "AudioDestinationNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioDestinationNode-section",
     "members": {
       "maxChannelCount": {}
     },
     "support_level": "experimental"
   },
@@ skipping 94 matching lines @@
       },
       "onchange": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "AutocompleteErrorEvent": {
     "comment": "http://wiki.whatwg.org/wiki/RequestAutocomplete",
     "members": {
+      "AutocompleteErrorEvent": {},
       "reason": {}
     },
     "support_level": "experimental"
   },
   "BarProp": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#barprop",
     "dart_action": "suppress",
     "members": {
       "visible": {}
     },
@@ skipping 10 matching lines @@
       "dispatchEvent": {},
       "level": {},
       "onchargingchange": {},
       "onchargingtimechange": {},
       "ondischargingtimechange": {},
       "onlevelchange": {},
       "removeEventListener": {}
     },
     "support_level": "stable"
   },
+  "BeforeInstallPromptEvent": {
+    "members": {
+      "BeforeInstallPromptEvent": {},
+      "platforms": {
+        "support_level": "untriaged"
+      },
+      "prompt": {
+        "support_level": "untriaged"
+      },
+      "userChoice": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "BeforeLoadEvent": {
     "members": {
       "url": {}
     },
     "support_level": "experimental"
   },
   "BeforeUnloadEvent": {
     "comment": "http://www.w3.org/html/wg/drafts/html/master/browsers.html#beforeunloadevent",
     "members": {
       "returnValue": {}
@@ skipping 26 matching lines @@
       "Blob": {},
       "close": {
         "support_level": "untriaged"
       },
       "size": {},
       "slice": {},
       "type": {}
     },
     "support_level": "stable"
   },
+  "BlobEvent": {
+    "members": {
+      "BlobEvent": {},
+      "data": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "Bluetooth": {
+    "members": {
+      "requestDevice": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "BluetoothDevice": {
+    "members": {
+      "connectGATT": {
+        "support_level": "untriaged"
+      },
+      "deviceClass": {
+        "support_level": "untriaged"
+      },
+      "instanceID": {
+        "support_level": "untriaged"
+      },
+      "name": {
+        "support_level": "untriaged"
+      },
+      "paired": {
+        "support_level": "untriaged"
+      },
+      "productID": {
+        "support_level": "untriaged"
+      },
+      "productVersion": {
+        "support_level": "untriaged"
+      },
+      "vendorID": {
+        "support_level": "untriaged"
+      },
+      "vendorIDSource": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "BluetoothGATTCharacteristic": {
+    "members": {
+      "readValue": {
+        "support_level": "untriaged"
+      },
+      "writeValue": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "BluetoothGATTRemoteServer": {
+    "members": {
+      "connected": {
+        "support_level": "untriaged"
+      },
+      "getPrimaryService": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "BluetoothGATTService": {
+    "members": {
+      "getCharacteristic": {
+        "support_level": "untriaged"
+      },
+      "isPrimary": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "BluetoothUUID": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "Body": {
     "members": {
       "arrayBuffer": {
         "support_level": "untriaged"
       },
       "blob": {
         "support_level": "untriaged"
       },
       "bodyUsed": {
         "support_level": "untriaged"
       },
       "json": {
         "support_level": "untriaged"
       },
       "text": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "CDATASection": {
     "comment": "http://dom.spec.whatwg.org/#cdatasection",
     "dart_action": "suppress",
     "members": {},
     "support_level": "deprecated"
   },
+  "CHROMIUMSubscribeUniform": {
+    "members": {
+      "MOUSE_POSITION_CHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "SUBSCRIBED_VALUES_BUFFER_CHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "bindValuebufferCHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "createValuebufferCHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "deleteValuebufferCHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "isValuebufferCHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "populateSubscribedValuesCHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "subscribeValueCHROMIUM": {
+        "support_level": "untriaged"
+      },
+      "uniformValuebufferCHROMIUM": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "CHROMIUMValuebuffer": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "CSS": {
     "comment": "http://www.w3.org/TR/css3-conditional/#the-css-interface",
     "dart_action": "experimental",
     "members": {
+      "escape": {
+        "support_level": "untriaged"
+      },
       "supports": {},
       "supportsCondition": {},
       "supportsProperty": {}
     }
   },
   "CSSCharsetRule": {
     "comment": "http://dev.w3.org/csswg/cssom/#the-csscharsetrule-interface",
     "members": {
       "encoding": {}
     },
@@ skipping 10 matching lines @@
     },
     "support_level": "experimental"
   },
   "CSSFontFaceRule": {
     "comment": "http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSFontFaceRule",
     "members": {
       "style": {}
     },
     "support_level": "stable"
   },
+  "CSSGroupingRule": {
+    "members": {
+      "cssRules": {
+        "support_level": "untriaged"
+      },
+      "deleteRule": {
+        "support_level": "untriaged"
+      },
+      "insertRule": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "CSSHostRule": {
     "comment": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#css-host-rule-interface",
     "members": {
       "cssRules": {},
       "deleteRule": {},
       "insertRule": {}
     },
     "support_level": "experimental"
   },
   "CSSImportRule": {
@@ skipping 15 matching lines @@
       }
     },
     "support_level": "untriaged"
   },
   "CSSKeyframesRule": {
     "members": {
       "CSSKeyframesRule": {},
       "__getter__": {
         "support_level": "untriaged"
       },
+      "appendRule": {
+        "support_level": "untriaged"
+      },
       "cssRules": {
         "support_level": "untriaged"
       },
       "deleteRule": {
         "support_level": "untriaged"
       },
       "findRule": {
         "support_level": "untriaged"
       },
       "insertRule": {
         "support_level": "untriaged"
       },
       "name": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "CSSMediaRule": {
     "comment": "http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSMediaRule",
     "members": {
       "cssRules": {},
       "deleteRule": {},
       "insertRule": {},
       "media": {}
     },
     "support_level": "stable"
   },
+  "CSSNamespaceRule": {
+    "members": {
+      "namespaceURI": {
+        "support_level": "untriaged"
+      },
+      "prefix": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "CSSPageRule": {
     "comment": "http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSPageRule",
     "members": {
       "selectorText": {},
       "style": {}
     },
     "support_level": "stable"
   },
   "CSSPrimitiveValue": {
     "comment": "http://dev.w3.org/csswg/cssom/#the-cssstyledeclaration-interface",
@@ skipping 50 matching lines @@
         "support_level": "experimental"
       },
       "IMPORT_RULE": {},
       "KEYFRAMES_RULE": {
         "support_level": "untriaged"
       },
       "KEYFRAME_RULE": {
         "support_level": "untriaged"
       },
       "MEDIA_RULE": {},
+      "NAMESPACE_RULE": {
+        "support_level": "untriaged"
+      },
       "PAGE_RULE": {},
       "STYLE_RULE": {},
       "SUPPORTS_RULE": {},
       "UNKNOWN_RULE": {
         "comment": "http://dev.w3.org/csswg/cssom/#changes-from-dom2",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "VIEWPORT_RULE": {
         "support_level": "untriaged"
@@ skipping 33 matching lines @@
     "comment": "http://dev.w3.org/csswg/cssom/#the-cssstyledeclaration-interface",
     "members": {
       "CSSStyleDeclaration": {},
       "__getter__": {
         "support_level": "untriaged"
       },
       "__propertyQuery__": {
         "support_level": "untriaged"
       },
       "__setter__": {},
+      "cssFloat": {
+        "support_level": "untriaged"
+      },
       "cssText": {},
       "dart": {
         "support_level": "untriaged"
       },
       "getPropertyCSSValue": {
         "comment": "http://dev.w3.org/csswg/cssom/#the-cssstyledeclaration-interface",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "getPropertyPriority": {},
@@ skipping 137 matching lines @@
         "support_level": "untriaged"
       },
       "get": {
         "support_level": "untriaged"
       },
       "has": {
         "support_level": "untriaged"
       },
       "keys": {
         "support_level": "untriaged"
+      },
+      "match": {
+        "support_level": "untriaged"
+      },
+      "open": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "Canvas2DContextAttributes": {
     "comment": "http://wiki.whatwg.org/wiki/CanvasOpaque#Suggested_IDL",
     "members": {
       "alpha": {},
       "storage": {
         "support_level": "untriaged"
@@ skipping 110 matching lines @@
       "drawSystemFocusRing": {
         "support_level": "untriaged"
       },
       "ellipse": {
         "support_level": "untriaged"
       },
       "fill": {},
       "fillRect": {},
       "fillStyle": {},
       "fillText": {},
+      "filter": {
+        "support_level": "untriaged"
+      },
       "font": {},
       "getContextAttributes": {
         "comment": "http://wiki.whatwg.org/wiki/CanvasOpaque#Suggested_IDL",
         "support_level": "experimental"
       },
       "getImageData": {},
       "getLineDash": {},
       "globalAlpha": {},
       "globalCompositeOperation": {},
       "imageSmoothingEnabled": {
@@ skipping 102 matching lines @@
     "support_level": "experimental"
   },
   "ChannelSplitterNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#ChannelSplitterNode-section",
     "members": {},
     "support_level": "experimental"
   },
   "CharacterData": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-FF21A306",
     "members": {
+      "after": {
+        "support_level": "untriaged"
+      },
       "appendData": {},
+      "before": {
+        "support_level": "untriaged"
+      },
       "data": {},
       "deleteData": {},
       "insertData": {},
       "length": {},
       "nextElementSibling": {
         "comment": "http://dom.spec.whatwg.org/#childnode"
       },
       "previousElementSibling": {
         "comment": "http://dom.spec.whatwg.org/#childnode"
       },
       "remove": {
         "support_level": "nonstandard"
       },
       "replaceData": {},
+      "replaceWith": {
+        "support_level": "untriaged"
+      },
       "substringData": {}
     },
     "support_level": "stable"
   },
   "ChildNode": {
     "members": {
+      "after": {
+        "support_level": "untriaged"
+      },
+      "before": {
+        "support_level": "untriaged"
+      },
       "nextElementSibling": {
         "support_level": "untriaged"
       },
       "previousElementSibling": {
         "support_level": "untriaged"
       },
       "remove": {
         "support_level": "untriaged"
+      },
+      "replaceWith": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "CircularGeofencingRegion": {
     "members": {
       "CircularGeofencingRegion": {},
       "MAX_RADIUS": {
         "support_level": "untriaged"
       },
@@ skipping 28 matching lines @@
         "support_level": "untriaged"
       },
       "radius": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "Client": {
     "members": {
+      "frameType": {
+        "support_level": "untriaged"
+      },
       "id": {
         "support_level": "untriaged"
       },
       "postMessage": {
         "support_level": "untriaged"
+      },
+      "url": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "ClientRect": {
     "comment": "http://www.w3.org/TR/cssom-view/#the-clientrect-interface",
     "members": {
       "bottom": {},
       "height": {},
       "left": {},
       "right": {},
       "top": {},
       "width": {}
     },
     "support_level": "stable"
   },
   "ClientRectList": {
     "comment": "http://www.w3.org/TR/cssom-view/#the-clientrectlist-interface",
     "members": {
+      "__getter__": {
+        "support_level": "untriaged"
+      },
       "item": {},
       "length": {}
     },
     "support_level": "stable"
   },
+  "Clients": {
+    "members": {
+      "claim": {
+        "support_level": "untriaged"
+      },
+      "matchAll": {
+        "support_level": "untriaged"
+      },
+      "openWindow": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Clipboard": {
     "comment": "http://www.w3.org/html/wg/drafts/html/master/editing.html#the-datatransfer-interface (Should be DataTransfer)",
     "members": {
       "clearData": {},
       "dropEffect": {},
       "effectAllowed": {},
       "files": {},
       "getData": {},
       "items": {},
       "setData": {},
       "setDragImage": {},
       "types": {}
     },
     "support_level": "stable"
   },
+  "ClipboardEvent": {
+    "members": {
+      "clipboardData": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "CloseEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/network.html#closeevent",
     "members": {
+      "CloseEvent": {},
       "code": {},
       "reason": {},
       "wasClean": {}
     },
     "support_level": "stable"
   },
   "Comment": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-1728279322",
     "members": {
       "Comment": {}
@@ skipping 10 matching lines @@
       "selectionStart": {
         "support_level": "untriaged"
       },
       "text": {}
     },
     "support_level": "experimental"
   },
   "CompositionEvent": {
     "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-CompositionEvent",
     "members": {
+      "CompositionEvent": {},
       "activeSegmentEnd": {
         "support_level": "untriaged"
       },
       "activeSegmentStart": {
         "support_level": "untriaged"
       },
       "data": {},
       "getSegments": {
         "support_level": "untriaged"
       },
       "initCompositionEvent": {}
     },
     "support_level": "stable"
   },
+  "CompositorProxy": {
+    "members": {
+      "CompositorProxy": {},
+      "disconnect": {
+        "support_level": "untriaged"
+      },
+      "opacity": {
+        "support_level": "untriaged"
+      },
+      "scrollLeft": {
+        "support_level": "untriaged"
+      },
+      "scrollTop": {
+        "support_level": "untriaged"
+      },
+      "supports": {
+        "support_level": "untriaged"
+      },
+      "transform": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "CompositorWorker": {
+    "members": {
+      "CompositorWorker": {},
+      "onerror": {
+        "support_level": "untriaged"
+      },
+      "onmessage": {
+        "support_level": "untriaged"
+      },
+      "postMessage": {
+        "support_level": "untriaged"
+      },
+      "terminate": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "CompositorWorkerGlobalScope": {
+    "members": {
+      "cancelAnimationFrame": {
+        "support_level": "untriaged"
+      },
+      "onmessage": {
+        "support_level": "untriaged"
+      },
+      "postMessage": {
+        "support_level": "untriaged"
+      },
+      "requestAnimationFrame": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Console": {
     "members": {
       "assert": {
         "support_level": "untriaged"
       },
       "assertCondition": {
         "support_level": "experimental"
       },
       "clear": {
         "support_level": "experimental"
@@ skipping 149 matching lines @@
       "listStyle": {},
       "separator": {}
     },
     "support_level": "deprecated"
   },
   "Credential": {
     "members": {
       "avatarURL": {
         "support_level": "untriaged"
       },
+      "iconURL": {
+        "support_level": "untriaged"
+      },
       "id": {
         "support_level": "untriaged"
       },
       "name": {
         "support_level": "untriaged"
+      },
+      "type": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "CredentialsContainer": {
     "members": {
+      "get": {
+        "support_level": "untriaged"
+      },
       "notifyFailedSignIn": {
         "support_level": "untriaged"
       },
       "notifySignedIn": {
         "support_level": "untriaged"
       },
       "notifySignedOut": {
         "support_level": "untriaged"
       },
       "request": {
         "support_level": "untriaged"
+      },
+      "requireUserMediation": {
+        "support_level": "untriaged"
+      },
+      "store": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
+  },
+  "CrossOriginConnectEvent": {
+    "members": {
+      "acceptConnection": {
+        "support_level": "untriaged"
+      },
+      "client": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "CrossOriginServiceWorkerClient": {
+    "members": {
+      "origin": {
+        "support_level": "untriaged"
+      },
+      "postMessage": {
+        "support_level": "untriaged"
+      },
+      "targetUrl": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
   },
   "Crypto": {
     "comment": "http://www.w3.org/TR/WebCryptoAPI/",
     "members": {
       "getRandomValues": {},
       "subtle": {
         "support_level": "untriaged"
       }
     },
     "support_level": "experimental"
@@ skipping 40 matching lines @@
   },
   "CustomElementConstructor": {
     "comment": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/index.html#dfn-custom-element-constructor-generation",
     "dart_action": "suppress",
     "members": {},
     "support_level": "experimental"
   },
   "CustomEvent": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Events/#interface-CustomEvent",
     "members": {
+      "CustomEvent": {},
       "_detail": {
         "support_level": "untriaged"
       },
       "detail": {},
       "initCustomEvent": {}
     },
     "support_level": "stable"
   },
   "DOMApplicationCache": {
     "members": {
@@ skipping 474 matching lines @@
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "DOMSettableTokenList": {
     "comment": "http://dev.w3.org/html5/spec-LC/common-dom-interfaces.html#domsettabletokenlist-0",
     "members": {
       "DOMSettableTokenList": {},
       "__getter__": {},
+      "item": {
+        "support_level": "untriaged"
+      },
       "value": {}
     },
     "support_level": "stable"
   },
   "DOMStringList": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Core/core.html#DOMStringList",
     "members": {
+      "__getter__": {
+        "support_level": "untriaged"
+      },
       "contains": {},
       "item": {},
       "length": {}
     },
     "support_level": "stable"
   },
   "DOMStringMap": {
     "comment": "http://dev.w3.org/html5/spec-LC/common-dom-interfaces.html#domstringmap-0",
     "members": {
       "DOMStringMap": {},
       "__delete__": {},
       "__getter__": {},
-      "__setter__": {}
+      "__setter__": {},
+      "item": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "stable"
   },
   "DOMTokenList": {
     "comment": "http://dev.w3.org/html5/spec-LC/common-dom-interfaces.html#domtokenlist-0",
     "members": {
       "add": {
         "support_level": "untriaged"
       },
       "contains": {},
@@ skipping 136 matching lines @@
     "members": {
       "onmessage": {
         "support_level": "untriaged"
       },
       "postMessage": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "DefaultSessionStartEvent": {
+    "members": {
+      "DefaultSessionStartEvent": {},
+      "session": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "DelayNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#DelayNode",
     "members": {
       "delayTime": {}
     },
     "support_level": "experimental"
   },
   "DeprecatedStorageInfo": {
     "members": {
       "PERSISTENT": {
@@ skipping 26 matching lines @@
     "comment": "http://dev.w3.org/geo/api/spec-source-orientation.html#devicemotion",
     "members": {
       "x": {},
       "y": {},
       "z": {}
     },
     "support_level": "experimental"
   },
   "DeviceLightEvent": {
     "members": {
+      "DeviceLightEvent": {},
       "value": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "DeviceMotionEvent": {
     "comment": "http://dev.w3.org/geo/api/spec-source-orientation.html#devicemotion",
     "members": {
       "acceleration": {},
@@ skipping 64 matching lines @@
     "comment": "http://dom.spec.whatwg.org/#interface-document",
     "members": {
       "URL": {},
       "activeElement": {
         "support_level": "untriaged"
       },
       "adoptNode": {},
       "anchors": {
         "dart_action": "suppress"
       },
+      "append": {
+        "support_level": "untriaged"
+      },
       "applets": {
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "body": {},
       "caretRangeFromPoint": {
         "comment": "http://www.w3.org/TR/2009/WD-cssom-view-20090804/#dom-documentview-caretrangefrompoint",
         "support_level": "experimental"
       },
       "characterSet": {},
@@ skipping 72 matching lines @@
         "support_level": "nonstandard"
       },
       "defaultView": {},
       "doctype": {
         "dart_action": "suppress"
       },
       "documentElement": {},
       "documentURI": {},
       "domain": {},
       "elementFromPoint": {},
+      "elementsFromPoint": {
+        "support_level": "untriaged"
+      },
       "evaluate": {
         "dart_action": "suppress"
       },
       "execCommand": {},
       "exitFullscreen": {
         "support_level": "untriaged"
       },
       "exitPointerLock": {
         "support_level": "untriaged"
       },
@@ skipping 210 matching lines @@
         "comment": "https://dvcs.w3.org/hg/pointerlock/raw-file/default/index.html#widl-Document-onpointerlockchange",
         "support_level": "experimental"
       },
       "onwebkitpointerlockerror": {
         "comment": "https://dvcs.w3.org/hg/pointerlock/raw-file/default/index.html#widl-Document-onpointerlockerror",
         "support_level": "experimental"
       },
       "onwheel": {
         "support_level": "untriaged"
       },
+      "origin": {
+        "support_level": "untriaged"
+      },
       "pointerLockElement": {
         "support_level": "untriaged"
       },
       "preferredStylesheetSet": {
         "comment": "http://dev.w3.org/csswg/cssom/#widl-Document-preferredStyleSheetSet"
       },
+      "prepend": {
+        "support_level": "untriaged"
+      },
       "queryCommandEnabled": {},
       "queryCommandIndeterm": {},
       "queryCommandState": {},
       "queryCommandSupported": {},
       "queryCommandValue": {},
       "querySelector": {},
       "querySelectorAll": {},
       "readyState": {},
       "referrer": {},
       "rootElement": {
         "support_level": "untriaged"
       },
+      "scrollingElement": {
+        "support_level": "untriaged"
+      },
       "securityPolicy": {
         "comment": "https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html#idl-def-SecurityPolicy",
         "support_level": "experimental"
       },
       "selectedStylesheetSet": {
         "comment": "http://dev.w3.org/csswg/cssom/#widl-Document-selectedStyleSheetSet"
       },
       "styleSheets": {},
       "timeline": {
         "support_level": "untriaged"
@@ skipping 78 matching lines @@
         "comment": "http://dom.spec.whatwg.org/#dom-document-xmlversion",
         "dart_action": "suppress",
         "support_level": "deprecated"
       }
     },
     "support_level": "stable"
   },
   "DocumentFragment": {
     "members": {
       "DocumentFragment": {},
+      "append": {
+        "support_level": "untriaged"
+      },
       "childElementCount": {
         "comment": "http://dom.spec.whatwg.org/#parentnode"
       },
       "firstElementChild": {
         "comment": "http://dom.spec.whatwg.org/#parentnode"
       },
       "getElementById": {
         "support_level": "untriaged"
       },
       "lastElementChild": {
         "comment": "http://dom.spec.whatwg.org/#parentnode"
       },
+      "prepend": {
+        "support_level": "untriaged"
+      },
       "querySelector": {},
       "querySelectorAll": {}
     },
     "support_level": "stable"
   },
   "DocumentType": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-412266927",
     "dart_action": "suppress",
     "members": {
       "entities": {
@@ skipping 19 matching lines @@
         "support_level": "untriaged"
       },
       "publicId": {},
       "remove": {
         "support_level": "nonstandard"
       },
       "systemId": {}
     },
     "support_level": "stable"
   },
+  "DragEvent": {
+    "members": {
+      "DragEvent": {},
+      "dataTransfer": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "DynamicsCompressorNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#DynamicsCompressorNode",
     "members": {
       "attack": {},
       "knee": {},
       "ratio": {},
       "reduction": {},
       "release": {},
       "threshold": {}
     },
     "support_level": "experimental"
   },
   "EXTBlendMinMax": {
     "members": {
       "MAX_EXT": {
         "support_level": "untriaged"
       },
       "MIN_EXT": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "EXTDisjointTimerQuery": {
+    "members": {
+      "CURRENT_QUERY_EXT": {
+        "support_level": "untriaged"
+      },
+      "GPU_DISJOINT_EXT": {
+        "support_level": "untriaged"
+      },
+      "QUERY_COUNTER_BITS_EXT": {
+        "support_level": "untriaged"
+      },
+      "QUERY_RESULT_AVAILABLE_EXT": {
+        "support_level": "untriaged"
+      },
+      "QUERY_RESULT_EXT": {
+        "support_level": "untriaged"
+      },
+      "TIMESTAMP_EXT": {
+        "support_level": "untriaged"
+      },
+      "TIME_ELAPSED_EXT": {
+        "support_level": "untriaged"
+      },
+      "beginQueryEXT": {
+        "support_level": "untriaged"
+      },
+      "createQueryEXT": {
+        "support_level": "untriaged"
+      },
+      "deleteQueryEXT": {
+        "support_level": "untriaged"
+      },
+      "endQueryEXT": {
+        "support_level": "untriaged"
+      },
+      "getQueryEXT": {
+        "support_level": "untriaged"
+      },
+      "getQueryObjectEXT": {
+        "support_level": "untriaged"
+      },
+      "isQueryEXT": {
+        "support_level": "untriaged"
+      },
+      "queryCounterEXT": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "EXTFragDepth": {
     "comment": "http://www.khronos.org/registry/webgl/extensions/EXT_frag_depth/",
     "members": {},
     "support_level": "experimental"
   },
   "EXTShaderTextureLOD": {
     "members": {},
     "support_level": "untriaged"
   },
   "EXTTextureFilterAnisotropic": {
     "comment": "http://www.khronos.org/registry/webgl/extensions/EXT_texture_filter_anisotropic/",
     "members": {
       "MAX_TEXTURE_MAX_ANISOTROPY_EXT": {},
       "TEXTURE_MAX_ANISOTROPY_EXT": {}
     },
     "support_level": "experimental"
   },
+  "EXTsRGB": {
+    "members": {
+      "FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT": {
+        "support_level": "untriaged"
+      },
+      "SRGB8_ALPHA8_EXT": {
+        "support_level": "untriaged"
+      },
+      "SRGB_ALPHA_EXT": {
+        "support_level": "untriaged"
+      },
+      "SRGB_EXT": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "EffectModel": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "Element": {
     "comment": "http://dom.spec.whatwg.org/#interface-element",
     "members": {
       "ALLOW_KEYBOARD_INPUT": {
         "comment": "https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html#dom-element-requestfullscreen",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
+      "after": {
+        "support_level": "untriaged"
+      },
       "animate": {
         "support_level": "untriaged"
       },
+      "append": {
+        "support_level": "untriaged"
+      },
       "attributes": {},
+      "before": {
+        "support_level": "untriaged"
+      },
       "blur": {},
       "childElementCount": {},
       "children": {
         "comment": "http://www.whatwg.org/specs/web-apps/2007-10-26/multipage/section-elements.html#htmlelement",
         "dart_action": "stable",
         "support_level": "nonstandard"
       },
       "classList": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#dom-classlist"
       },
       "className": {},
       "click": {
         "comment": "http://www.whatwg.org/specs/web-apps/2007-10-26/multipage/section-elements.html#htmlelement",
         "dart_action": "stable",
         "support_level": "nonstandard"
       },
       "clientHeight": {},
       "clientLeft": {},
       "clientTop": {},
       "clientWidth": {},
+      "closest": {
+        "support_level": "untriaged"
+      },
+      "computedName": {
+        "support_level": "untriaged"
+      },
+      "computedRole": {
+        "support_level": "untriaged"
+      },
       "contentEditable": {
         "comment": "http://www.whatwg.org/specs/web-apps/2007-10-26/multipage/section-elements.html#htmlelement",
         "dart_action": "stable",
         "support_level": "nonstandard"
       },
       "contextMenu": {
         "support_level": "untriaged"
       },
       "createShadowRoot": {
         "comment": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#api-shadow-aware-create-shadow-root",
@@ skipping 10 matching lines @@
       "draggable": {
         "comment": "http://www.whatwg.org/specs/web-apps/2007-10-26/multipage/section-elements.html#htmlelement",
         "dart_action": "stable",
         "support_level": "nonstandard"
       },
       "firstElementChild": {},
       "focus": {},
       "getAnimationPlayers": {
         "support_level": "untriaged"
       },
+      "getAnimations": {
+        "support_level": "untriaged"
+      },
       "getAttribute": {
         "support_level": "untriaged"
       },
       "getAttributeNS": {
         "support_level": "untriaged"
       },
       "getAttributeNode": {
         "comment": "http://dom.spec.whatwg.org/#dom-element-getattributenode",
         "dart_action": "suppress",
         "support_level": "deprecated"
@@ skipping 234 matching lines @@
         "support_level": "experimental"
       },
       "onwheel": {
         "support_level": "untriaged"
       },
       "outerHTML": {
         "comment": "http://www.whatwg.org/specs/web-apps/2007-10-26/multipage/section-elements.html#htmlelement",
         "dart_action": "stable",
         "support_level": "nonstandard"
       },
+      "prepend": {
+        "support_level": "untriaged"
+      },
       "previousElementSibling": {},
       "pseudo": {
         "support_level": "untriaged"
       },
       "querySelector": {},
       "querySelectorAll": {},
       "remove": {
         "dart_action": "stable",
         "support_level": "nonstandard"
       },
       "removeAttribute": {},
       "removeAttributeNS": {},
       "removeAttributeNode": {
         "comment": "http://dom.spec.whatwg.org/#dom-element-removeattributenode",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
+      "replaceWith": {
+        "support_level": "untriaged"
+      },
       "requestFullscreen": {
         "support_level": "untriaged"
       },
       "requestPointerLock": {
         "support_level": "untriaged"
       },
+      "scroll": {
+        "support_level": "untriaged"
+      },
+      "scrollBy": {
+        "support_level": "untriaged"
+      },
       "scrollByLines": {},
       "scrollByPages": {},
       "scrollHeight": {},
       "scrollIntoView": {
         "comment": "http://dev.w3.org/csswg/cssom-view/#widl-Element-scrollIntoView-void-boolean-top"
       },
       "scrollIntoViewIfNeeded": {
         "comment": "http://docs.webplatform.org/wiki/dom/methods/scrollIntoViewIfNeeded",
         "support_level": "nonstandard"
       },
       "scrollLeft": {},
+      "scrollTo": {
+        "support_level": "untriaged"
+      },
       "scrollTop": {},
       "scrollWidth": {},
+      "setApplyScroll": {
+        "support_level": "untriaged"
+      },
       "setAttribute": {},
       "setAttributeNS": {},
       "setAttributeNode": {
         "comment": "http://dom.spec.whatwg.org/#dom-element-setattributenode",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "setAttributeNodeNS": {},
+      "setDistributeScroll": {
+        "support_level": "untriaged"
+      },
       "shadowRoot": {
         "comment": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#api-shadow-aware-create-shadow-root",
         "support_level": "experimental"
       },
       "spellcheck": {
         "comment": "http://blog.whatwg.org/the-road-to-html-5-spellchecking",
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "style": {},
@@ skipping 156 matching lines @@
     "comment": "http://www.w3.org/TR/file-system-api/#the-errorcallback-interface",
     "members": {
       "handleEvent": {}
     },
     "support_level": "experimental"
   },
   "ErrorEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/workers.html#errorevent",
     "dart_action": "unstable",
     "members": {
+      "ErrorEvent": {},
       "colno": {
         "support_level": "untriaged"
       },
       "error": {
         "support_level": "untriaged"
       },
       "filename": {},
       "lineno": {},
       "message": {}
     },
@@ skipping 22 matching lines @@
       "DBLCLICK": {
         "comment": "https://developer.mozilla.org/en-US/docs/DOM/window.captureEvents",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "DRAGDROP": {
         "comment": "https://developer.mozilla.org/en-US/docs/DOM/window.captureEvents",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
+      "Event": {},
       "FOCUS": {
         "comment": "https://developer.mozilla.org/en-US/docs/DOM/window.captureEvents",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "KEYDOWN": {
         "comment": "https://developer.mozilla.org/en-US/docs/DOM/window.captureEvents",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
@@ skipping 56 matching lines @@
       "cancelable": {},
       "clipboardData": {
         "comment": "Part of copy/paste",
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "currentTarget": {},
       "defaultPrevented": {},
       "eventPhase": {},
       "initEvent": {},
+      "isTrusted": {
+        "support_level": "untriaged"
+      },
       "path": {
         "comment": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#extensions-to-event",
         "support_level": "experimental"
       },
       "preventDefault": {},
       "returnValue": {
         "comment": "http://dev.w3.org/html5/spec-LC/history.html#dom-beforeunloadevent-returnvalue",
         "support_level": "nonstandard"
       },
       "srcElement": {
@@ skipping 55 matching lines @@
   "EventTarget": {
     "members": {
       "addEventListener": {},
       "dispatchEvent": {},
       "removeEventListener": {}
     },
     "support_level": "stable"
   },
   "ExtendableEvent": {
     "members": {
+      "ExtendableEvent": {},
       "waitUntil": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "FederatedCredential": {
     "members": {
       "FederatedCredential": {},
       "federation": {
         "support_level": "untriaged"
+      },
+      "protocol": {
+        "support_level": "untriaged"
+      },
+      "provider": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "FetchBodyStream": {
     "members": {
       "asArrayBuffer": {
         "support_level": "untriaged"
       },
       "asBlob": {
         "support_level": "untriaged"
       },
       "asJSON": {
         "support_level": "untriaged"
       },
       "asText": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "FetchEvent": {
     "members": {
+      "FetchEvent": {},
       "isReload": {
         "support_level": "untriaged"
       },
       "request": {
         "support_level": "untriaged"
       },
       "respondWith": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "File": {
     "comment": "http://www.w3.org/TR/FileAPI/#dfn-file",
     "members": {
+      "File": {},
       "lastModified": {
         "support_level": "untriaged"
       },
       "lastModifiedDate": {},
       "name": {},
       "webkitRelativePath": {
         "comment": "https://plus.sandbox.google.com/+AddyOsmani/posts/Dk5UhZ6zfF3",
         "support_level": "experimental"
       }
     },
@@ skipping 179 matching lines @@
     "members": {
       "BYTES_PER_ELEMENT": {},
       "length": {},
       "setElements": {},
       "subarray": {}
     },
     "support_level": "stable"
   },
   "FocusEvent": {
     "members": {
+      "FocusEvent": {},
       "relatedTarget": {}
     },
     "support_level": "stable"
   },
   "FontFace": {
     "members": {
       "FontFace": {},
       "family": {
         "support_level": "untriaged"
       },
@@ skipping 97 matching lines @@
       "removeEventListener": {}
     },
     "support_level": "experimental"
   },
   "FormData": {
     "comment": "http://www.w3.org/TR/XMLHttpRequest2/#interface-formdata",
     "members": {
       "FormData": {},
       "append": {},
       "appendBlob": {},
-      "appendString": {}
+      "appendString": {},
+      "delete": {
+        "support_level": "untriaged"
+      },
+      "get": {
+        "support_level": "untriaged"
+      },
+      "getAll": {
+        "support_level": "untriaged"
+      },
+      "has": {
+        "support_level": "untriaged"
+      },
+      "set": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "stable"
   },
+  "FrameRequestCallback": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "GainNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#GainNode",
     "members": {
       "gain": {}
     },
     "support_level": "experimental"
   },
   "Gamepad": {
     "comment": "https://dvcs.w3.org/hg/gamepad/raw-file/default/gamepad.html#gamepad-interface",
     "members": {
@@ skipping 17 matching lines @@
         "support_level": "untriaged"
       },
       "value": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "GamepadEvent": {
     "members": {
+      "GamepadEvent": {},
       "gamepad": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "GamepadList": {
     "comment": "https://dvcs.w3.org/hg/gamepad/raw-file/default/gamepad.html",
     "members": {
       "item": {},
       "length": {}
     },
     "support_level": "experimental"
   },
   "Geofencing": {
     "members": {
       "getRegisteredRegions": {
         "support_level": "untriaged"
       },
       "registerRegion": {
         "support_level": "untriaged"
       },
       "unregisterRegion": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "GeofencingEvent": {
+    "members": {
+      "id": {
+        "support_level": "untriaged"
+      },
+      "region": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "GeofencingRegion": {
     "members": {
       "id": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "Geolocation": {
     "comment": "http://dev.w3.org/geo/api/spec-source.html#geolocation_interface",
@@ skipping 171 matching lines @@
       },
       "onvolumechange": {
         "support_level": "untriaged"
       },
       "onwaiting": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "HMDVRDevice": {
+    "members": {
+      "getEyeParameters": {
+        "support_level": "untriaged"
+      },
+      "setFieldOfView": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "HTMLAllCollection": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#dom-document-all",
     "dart_action": "suppress",
     "members": {
       "__getter__": {},
       "item": {},
       "length": {},
       "namedItem": {},
       "tags": {}
     },
@@ skipping 37 matching lines @@
         "support_level": "untriaged"
       },
       "pathname": {},
       "ping": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-a-element",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "port": {},
       "protocol": {},
+      "referrerpolicy": {
+        "support_level": "untriaged"
+      },
       "rel": {},
       "rev": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLAnchorElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "search": {},
       "shape": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLAnchorElement-partial",
         "dart_action": "suppress",
@@ skipping 170 matching lines @@
       "formAction": {},
       "formEnctype": {},
       "formMethod": {},
       "formNoValidate": {},
       "formTarget": {},
       "labels": {
         "comment": "http://www.w3.org/TR/html5/forms.html#dom-lfe-labels",
         "dart_action": "unstable"
       },
       "name": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "setCustomValidity": {},
       "type": {},
       "validationMessage": {},
       "validity": {},
       "value": {},
       "willValidate": {}
     },
     "support_level": "stable"
   },
   "HTMLCanvasElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#the-canvas-element",
     "members": {
       "HTMLCanvasElement": {},
       "getContext": {},
       "height": {},
       "onwebglcontextlost": {
         "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.15.2"
       },
       "onwebglcontextrestored": {
         "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.15.3"
       },
+      "toBlob": {
+        "support_level": "untriaged"
+      },
       "toDataURL": {},
       "width": {}
     },
     "support_level": "stable"
   },
   "HTMLCollection": {
     "comment": "http://www.w3.org/TR/domcore/#interface-htmlcollection",
     "members": {
       "__getter__": {},
       "item": {},
@@ skipping 148 matching lines @@
       },
       "write": {},
       "writeln": {}
     },
     "support_level": "stable"
   },
   "HTMLElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/2007-10-26/multipage/section-elements.html#htmlelement",
     "members": {
       "accessKey": {},
+      "blur": {
+        "support_level": "untriaged"
+      },
       "children": {},
       "click": {},
       "contentEditable": {},
       "contextMenu": {
         "support_level": "untriaged"
       },
       "dir": {},
       "draggable": {},
+      "focus": {
+        "support_level": "untriaged"
+      },
       "getInputContext": {
         "comment": "http://www.w3.org/TR/ime-api/#the-getinputcontext-method",
         "support_level": "experimental"
       },
       "hidden": {},
       "id": {},
       "innerHTML": {},
       "innerText": {
         "dart_action": "suppress",
         "support_level": "nonstandard"
       },
       "inputMethodContext": {
         "support_level": "untriaged"
       },
       "insertAdjacentElement": {
         "support_level": "nonstandard"
       },
       "insertAdjacentHTML": {
         "comment": "http://domparsing.spec.whatwg.org/#insertadjacenthtml%28%29"
       },
       "insertAdjacentText": {
         "support_level": "nonstandard"
       },
       "isContentEditable": {},
       "lang": {},
+      "offsetHeight": {
+        "support_level": "untriaged"
+      },
+      "offsetLeft": {
+        "support_level": "untriaged"
+      },
+      "offsetParent": {
+        "support_level": "untriaged"
+      },
+      "offsetTop": {
+        "support_level": "untriaged"
+      },
+      "offsetWidth": {
+        "support_level": "untriaged"
+      },
       "onabort": {
         "support_level": "untriaged"
       },
       "onblur": {
         "support_level": "untriaged"
       },
       "oncanplay": {
         "support_level": "untriaged"
       },
       "oncanplaythrough": {
@@ skipping 149 matching lines @@
       "outerHTML": {},
       "outerText": {
         "dart_action": "suppress",
         "support_level": "nonstandard"
       },
       "spellcheck": {
         "comment": "http://blog.whatwg.org/the-road-to-html-5-spellchecking",
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
+      "style": {
+        "support_level": "untriaged"
+      },
       "tabIndex": {},
       "title": {},
       "translate": {},
       "webkitdropzone": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#the-dropzone-attribute",
         "support_level": "experimental"
       }
     },
     "support_level": "stable"
   },
@@ skipping 28 matching lines @@
   "HTMLFieldSetElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#the-fieldset-element",
     "dart_action": "unstable",
     "members": {
       "HTMLFieldSetElement": {},
       "checkValidity": {},
       "disabled": {},
       "elements": {},
       "form": {},
       "name": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "setCustomValidity": {},
       "type": {},
       "validationMessage": {},
       "validity": {},
       "willValidate": {}
     },
     "support_level": "stable"
   },
   "HTMLFontElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#htmlfontelement",
     "dart_action": "suppress",
     "members": {
       "color": {},
       "face": {},
       "size": {}
     },
     "support_level": "deprecated"
   },
   "HTMLFormControlsCollection": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmlformcontrolscollection-0",
     "members": {
       "HTMLFormControlsCollection": {},
       "__getter__": {},
+      "item": {
+        "support_level": "untriaged"
+      },
       "namedItem": {}
     },
     "support_level": "stable"
   },
   "HTMLFormElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#the-form-element",
     "members": {
       "HTMLFormElement": {},
       "__getter__": {},
       "acceptCharset": {},
       "action": {},
       "autocomplete": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#autofilling-form-controls:-the-autocomplete-attribute",
         "support_level": "experimental"
       },
       "checkValidity": {},
       "elements": {},
       "encoding": {},
       "enctype": {},
+      "item": {
+        "support_level": "untriaged"
+      },
       "length": {},
       "method": {},
       "name": {},
       "noValidate": {},
       "onautocomplete": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#autofilling-form-controls:-the-autocomplete-attribute",
         "support_level": "experimental"
       },
       "onautocompleteerror": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#autofilling-form-controls:-the-autocomplete-attribute",
         "support_level": "experimental"
       },
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "requestAutocomplete": {
         "comment": "http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2012-October/037711.html",
         "support_level": "experimental"
       },
       "reset": {},
       "submit": {},
       "target": {}
     },
     "support_level": "stable"
   },
@@ skipping 147 matching lines @@
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLIFrameElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "marginWidth": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLIFrameElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "name": {},
+      "referrerpolicy": {
+        "support_level": "untriaged"
+      },
       "sandbox": {},
       "scrolling": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLIFrameElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "seamless": {},
       "src": {},
       "srcdoc": {},
       "width": {}
@@ skipping 34 matching lines @@
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "lowsrc": {
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "name": {},
       "naturalHeight": {},
       "naturalWidth": {},
+      "referrerpolicy": {
+        "support_level": "untriaged"
+      },
       "sizes": {
         "support_level": "untriaged"
       },
       "src": {},
       "srcset": {
         "support_level": "untriaged"
       },
       "useMap": {},
       "vspace": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLImageElement-partial",
@@ skipping 15 matching lines @@
   "HTMLInputElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#the-input-element",
     "members": {
       "accept": {},
       "align": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLInputElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "alt": {},
+      "autocapitalize": {
+        "support_level": "untriaged"
+      },
       "autocomplete": {},
       "autofocus": {},
       "capture": {
         "support_level": "untriaged"
       },
       "checkValidity": {},
       "checked": {},
       "defaultChecked": {},
       "defaultValue": {},
       "dirName": {},
@@ skipping 14 matching lines @@
       "inputMode": {
         "support_level": "untriaged"
       },
       "labels": {
         "comment": "http://www.w3.org/TR/html5/forms.html#dom-lfe-labels"
       },
       "list": {},
       "max": {},
       "maxLength": {},
       "min": {},
+      "minLength": {
+        "support_level": "untriaged"
+      },
       "multiple": {},
       "name": {},
       "onspeechchange": {
         "support_level": "untriaged"
       },
       "onwebkitSpeechChange": {
         "comment": "http://lists.w3.org/Archives/Public/public-xg-htmlspeech/2011Feb/att-0020/api-draft.html#extending_html_elements",
         "support_level": "experimental"
       },
       "onwebkitspeechchange": {
         "comment": "http://lists.w3.org/Archives/Public/public-xg-htmlspeech/2011Feb/att-0020/api-draft.html#extending_html_elements",
         "support_level": "experimental"
       },
       "pattern": {},
       "placeholder": {},
       "readOnly": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "required": {},
       "select": {},
       "selectionDirection": {},
       "selectionEnd": {},
       "selectionStart": {},
       "setCustomValidity": {},
       "setRangeText": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#dom-textarea/input-setrangetext",
         "dart_action": "experimental",
         "support_level": "experimental"
@@ skipping 44 matching lines @@
       "challenge": {},
       "checkValidity": {},
       "disabled": {},
       "form": {},
       "keytype": {},
       "labels": {
         "comment": "http://www.w3.org/TR/html5/forms.html#dom-lfe-labels",
         "dart_action": "unstable"
       },
       "name": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "setCustomValidity": {},
       "type": {},
       "validationMessage": {},
       "validity": {},
       "willValidate": {}
     },
     "support_level": "experimental"
   },
   "HTMLLIElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#the-li-element",
@@ skipping 234 matching lines @@
       },
       "pause": {},
       "paused": {},
       "play": {},
       "playbackRate": {},
       "played": {},
       "preload": {},
       "readyState": {},
       "seekable": {},
       "seeking": {},
+      "session": {
+        "support_level": "untriaged"
+      },
       "setMediaKeys": {
         "support_level": "untriaged"
       },
+      "setSinkId": {
+        "support_level": "untriaged"
+      },
+      "sinkId": {
+        "support_level": "untriaged"
+      },
       "src": {},
       "startTime": {
         "support_level": "nonstandard"
       },
       "textTracks": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#dom-media-texttracks",
         "support_level": "experimental"
       },
       "videoTracks": {
         "support_level": "untriaged"
@@ skipping 59 matching lines @@
       },
       "default": {
         "support_level": "untriaged"
       },
       "defaultValue": {
         "support_level": "untriaged"
       },
       "disabled": {
         "support_level": "untriaged"
       },
+      "icon": {
+        "support_level": "untriaged"
+      },
       "label": {
         "support_level": "untriaged"
       },
+      "radiogroup": {
+        "support_level": "untriaged"
+      },
       "type": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "HTMLMetaElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-meta-element",
     "members": {
       "HTMLMetaElement": {},
@@ skipping 103 matching lines @@
       "height": {},
       "hspace": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLObjectElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "integrity": {
         "support_level": "untriaged"
       },
       "name": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "setCustomValidity": {},
       "standby": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/obsolete.html#HTMLObjectElement-partial",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "type": {},
       "useMap": {},
       "validationMessage": {},
       "validity": {},
@@ skipping 27 matching lines @@
       "label": {},
       "selected": {},
       "text": {},
       "value": {}
     },
     "support_level": "stable"
   },
   "HTMLOptionsCollection": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmloptionscollection-0",
     "members": {
+      "item": {
+        "support_level": "untriaged"
+      },
       "length": {},
       "namedItem": {},
       "numericIndexGetter": {},
       "numericIndexSetter": {},
       "remove": {},
       "selectedIndex": {}
     },
     "support_level": "stable"
   },
   "HTMLOutputElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-output-element",
     "members": {
       "HTMLOutputElement": {},
       "checkValidity": {},
       "defaultValue": {},
       "form": {},
       "htmlFor": {},
       "labels": {
         "comment": "http://www.w3.org/TR/html5/forms.html#dom-lfe-labels",
         "dart_action": "unstable"
       },
       "name": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "setCustomValidity": {},
       "type": {},
       "validationMessage": {},
       "validity": {},
       "value": {},
       "willValidate": {}
     },
     "support_level": "stable"
   },
   "HTMLParagraphElement": {
@@ skipping 122 matching lines @@
         "dart_action": "unstable"
       },
       "length": {},
       "multiple": {},
       "name": {},
       "namedItem": {},
       "options": {},
       "remove": {
         "support_level": "untriaged"
       },
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "required": {},
       "selectedIndex": {},
       "selectedOptions": {},
       "setCustomValidity": {},
       "size": {},
       "type": {},
       "validationMessage": {},
       "validity": {},
       "value": {},
       "willValidate": {}
@@ skipping 298 matching lines @@
     "members": {
       "HTMLTemplateElement": {},
       "content": {}
     },
     "support_level": "experimental"
   },
   "HTMLTextAreaElement": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-textarea-element",
     "members": {
       "HTMLTextAreaElement": {},
+      "autocapitalize": {
+        "support_level": "untriaged"
+      },
       "autofocus": {},
       "checkValidity": {},
       "cols": {},
       "defaultValue": {},
       "dirName": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#dom-textarea-dirname",
         "support_level": "experimental"
       },
       "disabled": {},
       "form": {},
       "inputMode": {
         "support_level": "untriaged"
       },
       "labels": {
         "comment": "http://www.w3.org/TR/html5/forms.html#dom-lfe-labels",
         "dart_action": "unstable"
       },
       "maxLength": {},
+      "minLength": {
+        "support_level": "untriaged"
+      },
       "name": {},
       "placeholder": {},
       "readOnly": {},
+      "reportValidity": {
+        "support_level": "untriaged"
+      },
       "required": {},
       "rows": {},
       "select": {},
       "selectionDirection": {},
       "selectionEnd": {},
       "selectionStart": {},
       "setCustomValidity": {},
       "setRangeText": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#dom-textarea/input-setrangetext",
         "support_level": "experimental"
@@ skipping 108 matching lines @@
         "support_level": "deprecated"
       },
       "width": {}
     },
     "support_level": "stable"
   },
   "HashChangeEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/history.html#hashchangeevent",
     "dart_action": "unstable",
     "members": {
+      "HashChangeEvent": {},
       "initHashChangeEvent": {},
       "newURL": {},
       "oldURL": {}
     },
     "support_level": "stable"
   },
   "HeaderMap": {
     "members": {
       "HeaderMap": {},
       "clear": {
@@ skipping 40 matching lines @@
     "members": {},
     "support_level": "untriaged"
   },
   "History": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/history.html#the-history-interface",
     "members": {
       "back": {},
       "forward": {},
       "go": {},
       "length": {},
+      "options": {
+        "support_level": "untriaged"
+      },
       "pushState": {},
       "replaceState": {},
+      "scrollRestoration": {
+        "support_level": "untriaged"
+      },
       "state": {}
     },
     "support_level": "stable"
   },
   "HmacKeyAlgorithm": {
     "members": {
       "hash": {
         "support_level": "untriaged"
       },
       "length": {
@@ skipping 94 matching lines @@
       }
     },
     "support_level": "stable"
   },
   "IDBIndex": {
     "comment": "http://www.w3.org/TR/IndexedDB/#idl-def-IDBIndex",
     "dart_action": "unstable",
     "members": {
       "count": {},
       "get": {},
+      "getAll": {
+        "support_level": "untriaged"
+      },
+      "getAllKeys": {
+        "support_level": "untriaged"
+      },
       "getKey": {},
       "keyPath": {},
       "multiEntry": {},
       "name": {},
       "objectStore": {},
       "openCursor": {},
       "openKeyCursor": {},
       "unique": {}
     },
     "support_level": "stable"
@@ skipping 30 matching lines @@
     "dart_action": "unstable",
     "members": {
       "add": {},
       "autoIncrement": {},
       "clear": {},
       "count": {},
       "createIndex": {},
       "delete": {},
       "deleteIndex": {},
       "get": {},
+      "getAll": {
+        "support_level": "untriaged"
+      },
+      "getAllKeys": {
+        "support_level": "untriaged"
+      },
       "index": {},
       "indexNames": {},
       "keyPath": {},
       "name": {},
       "openCursor": {},
       "openKeyCursor": {
         "support_level": "untriaged"
       },
       "put": {},
       "transaction": {}
@@ skipping 33 matching lines @@
     "comment": "http://www.w3.org/TR/IndexedDB/#idl-def-IDBTransaction",
     "dart_action": "unstable",
     "members": {
       "abort": {},
       "addEventListener": {},
       "db": {},
       "dispatchEvent": {},
       "error": {},
       "mode": {},
       "objectStore": {},
+      "objectStoreNames": {
+        "support_level": "untriaged"
+      },
       "onabort": {},
       "oncomplete": {},
       "onerror": {},
       "removeEventListener": {},
       "webkitErrorMessage": {
         "support_level": "experimental"
       }
     },
     "support_level": "stable"
   },
   "IDBVersionChangeEvent": {
     "comment": "http://www.w3.org/TR/IndexedDB/#idl-def-IDBVersionChangeEvent",
     "dart_action": "unstable",
     "members": {
+      "IDBVersionChangeEvent": {},
       "dataLoss": {
         "support_level": "untriaged"
       },
       "dataLossMessage": {
         "support_level": "untriaged"
       },
       "newVersion": {},
       "oldVersion": {}
     },
     "support_level": "stable"
   },
+  "IdleDeadline": {
+    "members": {
+      "didTimeout": {
+        "support_level": "untriaged"
+      },
+      "timeRemaining": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "IdleRequestCallback": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "ImageBitmap": {
     "members": {
       "height": {
         "support_level": "untriaged"
       },
       "width": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
@@ skipping 21 matching lines @@
     "support_level": "stable"
   },
   "InjectedScriptHost": {
     "members": {
       "inspect": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "InputDevice": {
+    "members": {
+      "InputDevice": {},
+      "firesTouchEvents": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "InputDeviceCapabilities": {
+    "members": {
+      "InputDeviceCapabilities": {},
+      "firesTouchEvents": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "InputMethodContext": {
     "comment": "http://www.w3.org/TR/ime-api/#idl-def-InputMethodContext",
     "members": {
       "addEventListener": {
         "support_level": "untriaged"
       },
       "composition": {},
       "compositionEndOffset": {
         "support_level": "untriaged"
       },
@@ skipping 119 matching lines @@
       },
       "DOM_KEY_LOCATION_NUMPAD": {
         "support_level": "untriaged"
       },
       "DOM_KEY_LOCATION_RIGHT": {
         "support_level": "untriaged"
       },
       "DOM_KEY_LOCATION_STANDARD": {
         "support_level": "untriaged"
       },
+      "KeyboardEvent": {},
       "altGraphKey": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "altKey": {},
+      "charCode": {
+        "support_level": "untriaged"
+      },
+      "code": {
+        "support_level": "untriaged"
+      },
       "ctrlKey": {},
       "getModifierState": {
         "support_level": "untriaged"
       },
       "initKeyboardEvent": {},
+      "key": {
+        "support_level": "untriaged"
+      },
+      "keyCode": {
+        "support_level": "untriaged"
+      },
       "keyIdentifier": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "keyLocation": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "location": {
         "support_level": "untriaged"
       },
       "metaKey": {},
       "repeat": {
         "support_level": "untriaged"
       },
-      "shiftKey": {}
+      "shiftKey": {},
+      "which": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "stable"
   },
+  "KeyframeEffect": {
+    "members": {
+      "KeyframeEffect": {}
+    },
+    "support_level": "untriaged"
+  },
   "LocalCredential": {
     "members": {
       "LocalCredential": {},
       "password": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "LocalMediaStream": {
@@ skipping 70 matching lines @@
     "members": {
       "then": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "MIDIConnectionEvent": {
     "comment": "http://webaudio.github.io/web-midi-api/#midiconnectionevent-interface",
     "members": {
+      "MIDIConnectionEvent": {},
       "port": {}
     },
     "support_level": "experimental"
   },
   "MIDIErrorCallback": {
     "comment": "http://webaudio.github.io/web-midi-api/#midierrorcallback",
     "members": {},
     "support_level": "experimental"
   },
   "MIDIInput": {
@@ skipping 22 matching lines @@
       },
       "values": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "MIDIMessageEvent": {
     "comment": "http://webaudio.github.io/web-midi-api/#midimessageevent-interface",
     "members": {
+      "MIDIMessageEvent": {},
       "data": {},
       "receivedTime": {}
     },
     "support_level": "experimental"
   },
   "MIDIOutput": {
     "comment": "http://webaudio.github.io/web-midi-api/#midioutput-interface",
     "members": {
       "send": {}
     },
@@ skipping 19 matching lines @@
       "values": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "MIDIPort": {
     "comment": "http://webaudio.github.io/web-midi-api/#idl-def-MIDIPort",
     "members": {
       "addEventListener": {},
+      "close": {
+        "support_level": "untriaged"
+      },
+      "connection": {
+        "support_level": "untriaged"
+      },
       "dispatchEvent": {},
       "id": {},
       "manufacturer": {},
       "name": {},
       "ondisconnect": {},
+      "open": {
+        "support_level": "untriaged"
+      },
       "removeEventListener": {},
+      "state": {
+        "support_level": "untriaged"
+      },
       "type": {},
       "version": {}
     },
     "support_level": "experimental"
   },
   "MIDISuccessCallback": {
     "members": {},
     "support_level": "untriaged"
   },
   "MediaController": {
@@ skipping 34 matching lines @@
       "label": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "MediaDeviceInfoCallback": {
     "members": {},
     "support_level": "untriaged"
   },
+  "MediaDevices": {
+    "members": {
+      "enumerateDevices": {
+        "support_level": "untriaged"
+      },
+      "getUserMedia": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "MediaElementAudioSourceNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#MediaElementAudioSourceNode",
     "members": {
       "mediaElement": {
         "support_level": "nonstandard"
       }
     },
     "support_level": "experimental"
   },
+  "MediaEncryptedEvent": {
+    "members": {
+      "MediaEncryptedEvent": {},
+      "initData": {
+        "support_level": "untriaged"
+      },
+      "initDataType": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "MediaError": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#mediaerror",
     "dart_action": "unstable",
     "members": {
       "MEDIA_ERR_ABORTED": {},
       "MEDIA_ERR_DECODE": {},
       "MEDIA_ERR_ENCRYPTED": {
         "comment": "https://dvcs.w3.org/hg/html-media/raw-file/eme-v0.1/encrypted-media/encrypted-media.html#error-codes",
         "support_level": "experimental"
       },
@@ skipping 15 matching lines @@
       "code": {},
       "systemCode": {
         "support_level": "nonstandard"
       }
     },
     "support_level": "experimental"
   },
   "MediaKeyEvent": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/eme-v0.1/encrypted-media/encrypted-media.html#event-definitions",
     "members": {
+      "MediaKeyEvent": {},
       "defaultURL": {},
       "errorCode": {},
       "initData": {},
       "keySystem": {},
       "message": {},
       "sessionId": {},
       "systemCode": {}
     },
     "support_level": "experimental"
   },
   "MediaKeyMessageEvent": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/eme-v0.1/encrypted-media/encrypted-media.html#dom-mediakeymessageevent",
     "members": {
+      "MediaKeyMessageEvent": {},
       "destinationURL": {},
-      "message": {}
+      "message": {},
+      "messageType": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "experimental"
   },
   "MediaKeyNeededEvent": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/eme-v0.1/encrypted-media/encrypted-media.html#dom-mediakeyneededevent",
     "members": {
       "contentType": {
         "support_level": "untriaged"
       },
       "initData": {}
     },
     "support_level": "experimental"
   },
   "MediaKeySession": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/eme-v0.1/encrypted-media/encrypted-media.html#dom-mediakeysession",
     "members": {
       "addEventListener": {},
       "close": {},
       "closed": {
         "support_level": "untriaged"
       },
       "dispatchEvent": {},
       "error": {},
+      "expiration": {
+        "support_level": "untriaged"
+      },
       "generateRequest": {
         "support_level": "untriaged"
       },
+      "keyStatuses": {
+        "support_level": "untriaged"
+      },
       "keySystem": {},
+      "load": {
+        "support_level": "untriaged"
+      },
       "onkeyadded": {
         "support_level": "untriaged"
       },
       "onkeyerror": {
         "support_level": "untriaged"
       },
       "onkeymessage": {
         "support_level": "untriaged"
       },
       "onwebkitkeyadded": {},
       "onwebkitkeyerror": {},
       "onwebkitkeymessage": {},
       "release": {
         "support_level": "untriaged"
       },
+      "remove": {
+        "support_level": "untriaged"
+      },
       "removeEventListener": {},
       "sessionId": {},
       "update": {}
     },
     "support_level": "experimental"
   },
+  "MediaKeyStatusMap": {
+    "members": {
+      "size": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "MediaKeySystemAccess": {
+    "members": {
+      "createMediaKeys": {
+        "support_level": "untriaged"
+      },
+      "getConfiguration": {
+        "support_level": "untriaged"
+      },
+      "keySystem": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "MediaKeys": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/eme-v0.1/encrypted-media/encrypted-media.html",
     "members": {
       "MediaKeys": {},
       "create": {
         "support_level": "untriaged"
       },
       "createSession": {},
       "isTypeSupported": {
         "support_level": "untriaged"
       },
-      "keySystem": {}
+      "keySystem": {},
+      "setServerCertificate": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "experimental"
   },
   "MediaList": {
     "comment": "http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSMediaRule",
     "dart_action": "unstable",
     "members": {
       "appendMedium": {},
       "deleteMedium": {},
       "item": {},
@@ skipping 11 matching lines @@
       "media": {},
       "onchange": {
         "support_level": "untriaged"
       },
       "removeListener": {}
     },
     "support_level": "stable"
   },
   "MediaQueryListEvent": {
     "members": {
+      "MediaQueryListEvent": {},
       "matches": {
         "support_level": "untriaged"
       },
       "media": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "MediaQueryListListener": {
     "comment": "http://dev.w3.org/csswg/cssom-view/#the-mediaquerylist-interface",
     "dart_action": "unstable",
     "members": {
       "queryChanged": {}
     },
     "support_level": "stable"
   },
+  "MediaRecorder": {
+    "members": {
+      "MediaRecorder": {},
+      "canRecordMimeType": {
+        "support_level": "untriaged"
+      },
+      "ignoreMutedMedia": {
+        "support_level": "untriaged"
+      },
+      "mimeType": {
+        "support_level": "untriaged"
+      },
+      "onerror": {
+        "support_level": "untriaged"
+      },
+      "onpause": {
+        "support_level": "untriaged"
+      },
+      "pause": {
+        "support_level": "untriaged"
+      },
+      "requestData": {
+        "support_level": "untriaged"
+      },
+      "resume": {
+        "support_level": "untriaged"
+      },
+      "start": {
+        "support_level": "untriaged"
+      },
+      "state": {
+        "support_level": "untriaged"
+      },
+      "stop": {
+        "support_level": "untriaged"
+      },
+      "stream": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "MediaRecorderErrorEvent": {
+    "members": {
+      "message": {
+        "support_level": "untriaged"
+      },
+      "name": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "MediaSession": {
+    "members": {
+      "MediaSession": {},
+      "activate": {
+        "support_level": "untriaged"
+      },
+      "deactivate": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "MediaSource": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html#mediasource",
     "members": {
       "MediaSource": {},
       "activeSourceBuffers": {},
       "addEventListener": {},
       "addSourceBuffer": {},
       "dispatchEvent": {},
       "duration": {},
       "endOfStream": {},
       "isTypeSupported": {},
       "readyState": {},
       "removeEventListener": {},
       "removeSourceBuffer": {},
       "sourceBuffers": {}
     },
     "support_level": "experimental"
   },
   "MediaStream": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediastream",
     "members": {
       "MediaStream": {},
+      "active": {
+        "support_level": "untriaged"
+      },
       "addEventListener": {},
       "addTrack": {},
       "clone": {
         "support_level": "untriaged"
       },
       "dispatchEvent": {},
       "ended": {},
       "getAudioTracks": {},
       "getTrackById": {},
       "getTracks": {
@@ skipping 23 matching lines @@
   "MediaStreamAudioSourceNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#MediaStreamAudioSourceNode",
     "members": {
       "mediaStream": {}
     },
     "support_level": "experimental"
   },
   "MediaStreamEvent": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/getusermedia.html",
     "members": {
+      "MediaStreamEvent": {},
       "stream": {}
     },
     "support_level": "experimental"
   },
   "MediaStreamTrack": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediastreamtrack",
     "members": {
       "addEventListener": {},
       "clone": {
         "support_level": "untriaged"
@@ skipping 46 matching lines @@
     "members": {
       "MessageChannel": {},
       "port1": {},
       "port2": {}
     },
     "support_level": "stable"
   },
   "MessageEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#messageevent",
     "members": {
+      "MessageEvent": {},
       "data": {},
       "initMessageEvent": {},
       "lastEventId": {
         "dart_action": "unstable"
       },
       "origin": {},
       "ports": {
         "dart_action": "unstable"
       },
       "source": {},
@@ skipping 48 matching lines @@
       "__getter__": {},
       "item": {},
       "length": {},
       "namedItem": {}
     },
     "support_level": "nonstandard"
   },
   "MouseEvent": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Events/#events-mouseevents",
     "members": {
+      "MouseEvent": {},
       "altKey": {},
       "button": {},
+      "buttons": {
+        "support_level": "untriaged"
+      },
       "clientX": {},
       "clientY": {},
       "ctrlKey": {},
       "dataTransfer": {
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
       "fromElement": {
         "support_level": "deprecated"
       },
+      "getModifierState": {
+        "support_level": "untriaged"
+      },
       "initMouseEvent": {},
+      "layerX": {
+        "support_level": "untriaged"
+      },
+      "layerY": {
+        "support_level": "untriaged"
+      },
       "metaKey": {},
       "movementX": {
         "support_level": "untriaged"
       },
       "movementY": {
         "support_level": "untriaged"
       },
       "offsetX": {
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
       "offsetY": {
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
+      "pageX": {
+        "support_level": "untriaged"
+      },
+      "pageY": {
+        "support_level": "untriaged"
+      },
       "region": {
         "support_level": "untriaged"
       },
       "relatedTarget": {},
       "screenX": {},
       "screenY": {},
       "shiftKey": {},
       "toElement": {
         "support_level": "deprecated"
       },
       "webkitMovementX": {
         "support_level": "experimental"
       },
       "webkitMovementY": {
         "support_level": "experimental"
       },
+      "which": {
+        "support_level": "untriaged"
+      },
       "x": {
         "dart_action": "suppress",
         "support_level": "nonstandard"
       },
       "y": {
         "dart_action": "suppress",
         "support_level": "nonstandard"
       }
     },
     "support_level": "stable"
@@ skipping 39 matching lines @@
       "attributeNamespace": {},
       "nextSibling": {},
       "oldValue": {},
       "previousSibling": {},
       "removedNodes": {},
       "target": {},
       "type": {}
     },
     "support_level": "stable"
   },
+  "NFC": {
+    "members": {
+      "requestAdapter": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "NamedNodeMap": {
     "comment": "http://dom.spec.whatwg.org/#namednodemap",
     "dart_action": "suppress",
     "members": {
       "NamedNodeMap": {},
       "__getter__": {},
       "getNamedItem": {},
       "getNamedItemNS": {},
       "item": {},
       "length": {},
       "removeNamedItem": {},
       "removeNamedItemNS": {},
       "setNamedItem": {},
       "setNamedItemNS": {}
     },
     "support_level": "deprecated"
   },
   "Navigator": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigator",
     "members": {
       "appCodeName": {
         "support_level": "nonstandard"
       },
       "appName": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorid"
       },
       "appVersion": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorid"
       },
+      "bluetooth": {
+        "support_level": "untriaged"
+      },
       "connection": {
         "support_level": "untriaged"
       },
       "cookieEnabled": {
         "comment": "https://developer.mozilla.org/en-US/docs/DOM/window.navigator.cookieEnabled",
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
       "credentials": {
         "support_level": "untriaged"
@@ skipping 20 matching lines @@
       "getGamepads": {
         "support_level": "untriaged"
       },
       "getMediaDevices": {
         "support_level": "untriaged"
       },
       "getStorageUpdates": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorstorageutils",
         "support_level": "experimental"
       },
+      "getVRDevices": {
+        "support_level": "untriaged"
+      },
       "hardwareConcurrency": {
         "support_level": "untriaged"
       },
       "isProtocolHandlerRegistered": {
         "support_level": "untriaged"
       },
       "javaEnabled": {
         "dart_action": "suppress",
         "support_level": "nonstandard"
       },
       "language": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorlanguage"
       },
       "languages": {
         "support_level": "untriaged"
       },
       "maxTouchPoints": {
         "support_level": "untriaged"
       },
+      "mediaDevices": {
+        "support_level": "untriaged"
+      },
       "mimeTypes": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
+      "nfc": {
+        "support_level": "untriaged"
+      },
       "onLine": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html#navigatoronline",
         "dart_action": "unstable"
       },
+      "permissions": {
+        "support_level": "untriaged"
+      },
       "platform": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorid"
       },
       "plugins": {
         "dart_action": "suppress",
         "support_level": "nonstandard"
       },
       "presentation": {
         "support_level": "untriaged"
       },
       "product": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorid",
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
       "productSub": {
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
       "push": {
         "support_level": "untriaged"
       },
       "registerProtocolHandler": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorcontentutils",
         "dart_action": "unstable"
       },
       "requestMIDIAccess": {
         "support_level": "untriaged"
       },
+      "requestMediaKeySystemAccess": {
+        "support_level": "untriaged"
+      },
       "sendBeacon": {
         "support_level": "untriaged"
       },
       "serviceWorker": {
         "support_level": "untriaged"
       },
+      "services": {
+        "support_level": "untriaged"
+      },
+      "storage": {
+        "support_level": "untriaged"
+      },
       "storageQuota": {
         "support_level": "untriaged"
       },
       "unregisterProtocolHandler": {
         "support_level": "untriaged"
       },
+      "usb": {
+        "support_level": "untriaged"
+      },
       "userAgent": {
         "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#navigatorid"
       },
       "vendor": {
         "dart_action": "unstable",
         "support_level": "nonstandard"
       },
       "vendorSub": {
         "dart_action": "unstable",
         "support_level": "nonstandard"
@@ skipping 67 matching lines @@
     "support_level": "untriaged"
   },
   "NavigatorOnLine": {
     "members": {
       "onLine": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "NavigatorStorageUtils": {
+    "members": {
+      "cookieEnabled": {
+        "support_level": "untriaged"
+      },
+      "getStorageUpdates": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "NavigatorUserMediaError": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/getusermedia.html#idl-def-NavigatorUserMediaError",
     "members": {
       "PERMISSION_DENIED": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "code": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
@@ skipping 13 matching lines @@
   },
   "NavigatorUserMediaSuccessCallback": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/getusermedia.html#idl-def-NavigatorUserMediaSuccessCallback",
     "members": {
       "handleEvent": {}
     },
     "support_level": "experimental"
   },
   "NetworkInformation": {
     "members": {
+      "onchange": {
+        "support_level": "untriaged"
+      },
       "type": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "Node": {
     "comment": "http://dom.spec.whatwg.org/#interface-node",
     "members": {
       "ATTRIBUTE_NODE": {},
@@ skipping 130 matching lines @@
     "comment": "http://dom.spec.whatwg.org/#nodelist",
     "members": {
       "__getter__": {
         "support_level": "untriaged"
       },
       "item": {},
       "length": {}
     },
     "support_level": "stable"
   },
+  "NonDocumentTypeChildNode": {
+    "members": {
+      "nextElementSibling": {
+        "support_level": "untriaged"
+      },
+      "previousElementSibling": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "NonElementParentNode": {
+    "members": {
+      "getElementById": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Notation": {
     "comment": "http://dom.spec.whatwg.org/#notation",
     "dart_action": "suppress",
     "members": {
       "publicId": {},
       "systemId": {}
     },
     "support_level": "deprecated"
   },
   "Notification": {
     "comment": "http://www.w3.org/TR/notifications/#notification",
     "dart_action": "experimental",
     "members": {
       "Notification": {},
+      "actions": {
+        "support_level": "untriaged"
+      },
       "addEventListener": {},
       "body": {
         "support_level": "untriaged"
       },
       "cancel": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "close": {},
+      "data": {
+        "support_level": "untriaged"
+      },
       "dir": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "dispatchEvent": {},
       "icon": {
         "support_level": "untriaged"
       },
       "lang": {
         "support_level": "untriaged"
       },
+      "maxActions": {
+        "support_level": "untriaged"
+      },
       "onclick": {},
       "onclose": {},
       "ondisplay": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "onerror": {},
       "onshow": {},
       "permission": {},
       "removeEventListener": {},
       "replaceId": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "requestPermission": {},
+      "requireInteraction": {
+        "support_level": "untriaged"
+      },
       "show": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
+      "silent": {
+        "support_level": "untriaged"
+      },
       "tag": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "title": {
         "support_level": "untriaged"
+      },
+      "vibrate": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "experimental"
   },
+  "NotificationEvent": {
+    "members": {
+      "NotificationEvent": {},
+      "action": {
+        "support_level": "untriaged"
+      },
+      "notification": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "NotificationPermissionCallback": {
     "comment": "http://www.w3.org/TR/notifications/#notificationpermissioncallback",
     "members": {
       "handleEvent": {}
     },
     "support_level": "experimental"
   },
   "OESElementIndexUint": {
     "comment": "http://www.khronos.org/registry/webgl/extensions/OES_element_index_uint/",
     "dart_action": "experimental",
@@ skipping 47 matching lines @@
   "OfflineAudioCompletionEvent": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#OfflineAudioCompletionEvent-section",
     "members": {
       "renderedBuffer": {}
     },
     "support_level": "experimental"
   },
   "OfflineAudioContext": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#OfflineAudioContext-section",
     "members": {
-      "OfflineAudioContext": {}
+      "OfflineAudioContext": {},
+      "startRendering": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "experimental"
   },
   "OscillatorNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#dfn-OscillatorNode",
     "members": {
       "CUSTOM": {
         "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AlternateNames",
         "dart_action": "suppress",
         "support_level": "deprecated"
@@ skipping 61 matching lines @@
       "histogramEnumeration": {},
       "localizeNumberString": {},
       "setValue": {},
       "setValueAndClosePopup": {}
     },
     "support_level": "nonstandard"
   },
   "PageTransitionEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/history.html#pagetransitionevent",
     "members": {
+      "PageTransitionEvent": {},
       "persisted": {}
     },
     "support_level": "experimental"
   },
   "PannerNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#PannerNode",
     "members": {
       "EQUALPOWER": {
         "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AlternateNames",
         "dart_action": "suppress",
@@ skipping 33 matching lines @@
       "refDistance": {},
       "rolloffFactor": {},
       "setOrientation": {},
       "setPosition": {},
       "setVelocity": {}
     },
     "support_level": "experimental"
   },
   "ParentNode": {
     "members": {
+      "append": {
+        "support_level": "untriaged"
+      },
       "childElementCount": {
         "support_level": "untriaged"
       },
       "children": {
         "support_level": "untriaged"
       },
       "firstElementChild": {
         "support_level": "untriaged"
       },
       "lastElementChild": {
         "support_level": "untriaged"
       },
+      "prepend": {
+        "support_level": "untriaged"
+      },
       "querySelector": {
         "support_level": "untriaged"
       },
       "querySelectorAll": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "PasswordCredential": {
+    "members": {
+      "PasswordCredential": {},
+      "formData": {
+        "support_level": "untriaged"
+      },
+      "password": {
+        "support_level": "untriaged"
+      },
+      "toFormData": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Path": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#path-objects",
     "members": {
       "Path": {},
       "arc": {},
       "arcTo": {},
       "bezierCurveTo": {},
       "closePath": {},
       "lineTo": {},
       "moveTo": {},
@@ skipping 37 matching lines @@
       }
     },
     "support_level": "untriaged"
   },
   "Performance": {
     "comment": "http://www.w3.org/TR/navigation-timing/#performance",
     "members": {
       "addEventListener": {
         "support_level": "untriaged"
       },
+      "clearFrameTimings": {
+        "support_level": "untriaged"
+      },
       "clearMarks": {
         "comment": "https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/UserTiming/Overview.html#extensions-performance-interface",
         "support_level": "experimental"
       },
       "clearMeasures": {
         "comment": "https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/UserTiming/Overview.html#extensions-performance-interface",
         "support_level": "experimental"
       },
+      "clearResourceTimings": {
+        "support_level": "untriaged"
+      },
       "dispatchEvent": {
         "support_level": "untriaged"
       },
       "getEntries": {
         "comment": "http://www.w3.org/TR/performance-timeline/#sec-window.performance-attribute",
         "support_level": "experimental"
       },
       "getEntriesByName": {
         "comment": "http://www.w3.org/TR/performance-timeline/#sec-window.performance-attribute",
         "support_level": "experimental"
@@ skipping 21 matching lines @@
       "onresourcetimingbufferfull": {
         "support_level": "untriaged"
       },
       "onwebkitresourcetimingbufferfull": {
         "comment": "http://www.w3c-test.org/webperf/specs/ResourceTiming/#performanceresourcetiming-methods",
         "support_level": "experimental"
       },
       "removeEventListener": {
         "support_level": "untriaged"
       },
+      "setFrameTimingBufferSize": {
+        "support_level": "untriaged"
+      },
+      "setResourceTimingBufferSize": {
+        "support_level": "untriaged"
+      },
       "timing": {},
       "webkitClearResourceTimings": {
         "comment": "http://www.w3c-test.org/webperf/specs/ResourceTiming/#extensions-performance-interface",
         "support_level": "experimental"
       },
       "webkitSetResourceTimingBufferSize": {
         "comment": "http://www.w3c-test.org/webperf/specs/ResourceTiming/#performanceresourcetiming-methods",
         "support_level": "experimental"
       }
     },
     "support_level": "stable"
   },
+  "PerformanceCompositeTiming": {
+    "members": {
+      "sourceFrame": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "PerformanceEntry": {
     "comment": "http://www.w3.org/TR/performance-timeline/#sec-PerformanceEntry-interface",
     "members": {
       "duration": {},
       "entryType": {},
       "name": {},
       "startTime": {}
     },
     "support_level": "experimental"
   },
@@ skipping 21 matching lines @@
     "members": {
       "TYPE_BACK_FORWARD": {},
       "TYPE_NAVIGATE": {},
       "TYPE_RELOAD": {},
       "TYPE_RESERVED": {},
       "redirectCount": {},
       "type": {}
     },
     "support_level": "stable"
   },
+  "PerformanceObserver": {
+    "members": {
+      "disconnect": {
+        "support_level": "untriaged"
+      },
+      "observe": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PerformanceObserverEntryList": {
+    "members": {
+      "getEntries": {
+        "support_level": "untriaged"
+      },
+      "getEntriesByName": {
+        "support_level": "untriaged"
+      },
+      "getEntriesByType": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PerformanceRenderTiming": {
+    "members": {
+      "sourceFrame": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "PerformanceResourceTiming": {
     "comment": "http://www.w3c-test.org/webperf/specs/ResourceTiming/#performanceresourcetiming",
     "members": {
       "connectEnd": {},
       "connectStart": {},
       "domainLookupEnd": {},
       "domainLookupStart": {},
       "fetchStart": {},
       "initiatorType": {},
       "redirectEnd": {},
@@ skipping 35 matching lines @@
       "redirectStart": {},
       "requestStart": {},
       "responseEnd": {},
       "responseStart": {},
       "secureConnectionStart": {},
       "unloadEventEnd": {},
       "unloadEventStart": {}
     },
     "support_level": "stable"
   },
+  "PeriodicSyncEvent": {
+    "members": {
+      "PeriodicSyncEvent": {},
+      "registration": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PeriodicSyncManager": {
+    "members": {
+      "getRegistration": {
+        "support_level": "untriaged"
+      },
+      "getRegistrations": {
+        "support_level": "untriaged"
+      },
+      "minPossiblePeriod": {
+        "support_level": "untriaged"
+      },
+      "permissionState": {
+        "support_level": "untriaged"
+      },
+      "register": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PeriodicSyncRegistration": {
+    "members": {
+      "minPeriod": {
+        "support_level": "untriaged"
+      },
+      "networkState": {
+        "support_level": "untriaged"
+      },
+      "powerState": {
+        "support_level": "untriaged"
+      },
+      "tag": {
+        "support_level": "untriaged"
+      },
+      "unregister": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "PeriodicWave": {
     "members": {},
     "support_level": "untriaged"
   },
+  "PermissionStatus": {
+    "members": {
+      "onchange": {
+        "support_level": "untriaged"
+      },
+      "state": {
+        "support_level": "untriaged"
+      },
+      "status": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "Permissions": {
+    "members": {
+      "query": {
+        "support_level": "untriaged"
+      },
+      "request": {
+        "support_level": "untriaged"
+      },
+      "revoke": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Player": {
     "members": {
       "cancel": {
         "support_level": "untriaged"
       },
       "currentTime": {
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       "finish": {
         "support_level": "untriaged"
@@ skipping 47 matching lines @@
       "__getter__": {},
       "item": {},
       "length": {},
       "namedItem": {},
       "refresh": {}
     },
     "support_level": "nonstandard"
   },
   "PluginPlaceholderElement": {
     "members": {
+      "closeable": {
+        "support_level": "untriaged"
+      },
       "createdCallback": {
         "support_level": "untriaged"
       },
       "message": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "PointerEvent": {
+    "members": {
+      "PointerEvent": {},
+      "height": {
+        "support_level": "untriaged"
+      },
+      "isPrimary": {
+        "support_level": "untriaged"
+      },
+      "pointerId": {
+        "support_level": "untriaged"
+      },
+      "pointerType": {
+        "support_level": "untriaged"
+      },
+      "pressure": {
+        "support_level": "untriaged"
+      },
+      "tiltX": {
+        "support_level": "untriaged"
+      },
+      "tiltY": {
+        "support_level": "untriaged"
+      },
+      "width": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "PopStateEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/history.html#popstateevent",
     "members": {
+      "PopStateEvent": {},
       "state": {}
     },
     "support_level": "stable"
   },
   "PositionCallback": {
     "comment": "http://www.w3.org/TR/geolocation-API/#position-callback",
     "dart_action": "unstable",
     "members": {
       "handleEvent": {}
     },
@@ skipping 12 matching lines @@
     "support_level": "stable"
   },
   "PositionErrorCallback": {
     "comment": "http://www.w3.org/TR/geolocation-API/#error-callback",
     "dart_action": "unstable",
     "members": {
       "handleEvent": {}
     },
     "support_level": "stable"
   },
+  "PositionSensorVRDevice": {
+    "members": {
+      "getImmediateState": {
+        "support_level": "untriaged"
+      },
+      "getState": {
+        "support_level": "untriaged"
+      },
+      "resetSensor": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Presentation": {
-    "members": {},
+    "members": {
+      "defaultRequest": {
+        "support_level": "untriaged"
+      },
+      "getAvailability": {
+        "support_level": "untriaged"
+      },
+      "joinSession": {
+        "support_level": "untriaged"
+      },
+      "session": {
+        "support_level": "untriaged"
+      },
+      "startSession": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PresentationAvailability": {
+    "members": {
+      "onchange": {
+        "support_level": "untriaged"
+      },
+      "value": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PresentationRequest": {
+    "members": {
+      "PresentationRequest": {},
+      "getAvailability": {
+        "support_level": "untriaged"
+      },
+      "reconnect": {
+        "support_level": "untriaged"
+      },
+      "start": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PresentationSession": {
+    "members": {
+      "binaryType": {
+        "support_level": "untriaged"
+      },
+      "close": {
+        "support_level": "untriaged"
+      },
+      "id": {
+        "support_level": "untriaged"
+      },
+      "onmessage": {
+        "support_level": "untriaged"
+      },
+      "send": {
+        "support_level": "untriaged"
+      },
+      "state": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "PresentationSessionConnectEvent": {
+    "members": {
+      "PresentationSessionConnectEvent": {},
+      "session": {
+        "support_level": "untriaged"
+      }
+    },
     "support_level": "untriaged"
   },
   "ProcessingInstruction": {
     "comment": "http://dom.spec.whatwg.org/#interface-processinginstruction",
     "dart_action": "unstable",
     "members": {
       "data": {
         "support_level": "nonstandard"
       },
       "sheet": {
         "support_level": "nonstandard"
       },
       "target": {}
     },
     "support_level": "stable"
   },
   "ProgressEvent": {
     "comment": "http://xhr.spec.whatwg.org/#interface-progressevent",
     "members": {
+      "ProgressEvent": {},
       "lengthComputable": {},
       "loaded": {},
       "total": {}
     },
     "support_level": "stable"
   },
   "Promise": {
     "members": {
       "_any": {
         "support_level": "untriaged"
@@ skipping 18 matching lines @@
       },
       "resolve": {
         "support_level": "untriaged"
       },
       "some": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "PromiseRejectionEvent": {
+    "members": {
+      "PromiseRejectionEvent": {},
+      "promise": {
+        "support_level": "untriaged"
+      },
+      "reason": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "PromiseResolver": {
     "members": {
       "fulfill": {
         "support_level": "untriaged"
       },
       "reject": {
         "support_level": "untriaged"
       },
       "resolve": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "PushEvent": {
     "members": {
+      "PushEvent": {},
       "data": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "PushManager": {
     "members": {
+      "getSubscription": {
+        "support_level": "untriaged"
+      },
+      "permissionState": {
+        "support_level": "untriaged"
+      },
       "register": {
         "support_level": "untriaged"
+      },
+      "subscribe": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
+  },
+  "PushMessageData": {
+    "members": {
+      "PushMessageData": {},
+      "arrayBuffer": {
+        "support_level": "untriaged"
+      },
+      "blob": {
+        "support_level": "untriaged"
+      },
+      "text": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
   },
   "PushRegistration": {
     "members": {
       "pushEndpoint": {
         "support_level": "untriaged"
       },
       "pushRegistrationId": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "PushSubscription": {
+    "members": {
+      "endpoint": {
+        "support_level": "untriaged"
+      },
+      "getKey": {
+        "support_level": "untriaged"
+      },
+      "unsubscribe": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "RGBColor": {
     "comment": "http://dev.w3.org/csswg/cssom/",
     "dart_action": "suppress",
     "members": {
       "blue": {},
       "green": {},
       "red": {}
     },
     "support_level": "deprecated"
   },
   "RTCDTMFSender": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCDTMFSender",
     "members": {
       "addEventListener": {},
       "canInsertDTMF": {},
       "dispatchEvent": {},
       "duration": {},
       "insertDTMF": {},
       "interToneGap": {},
       "ontonechange": {},
       "removeEventListener": {},
       "toneBuffer": {},
       "track": {}
     },
     "support_level": "experimental"
   },
   "RTCDTMFToneChangeEvent": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCDTMFToneChangeEvent",
     "members": {
+      "RTCDTMFToneChangeEvent": {},
       "tone": {}
     },
     "support_level": "experimental"
   },
   "RTCDataChannel": {
     "comment": "http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCDataChannel",
     "members": {
       "addEventListener": {},
       "binaryType": {},
       "bufferedAmount": {},
+      "bufferedAmountLowThreshold": {
+        "support_level": "untriaged"
+      },
       "close": {},
       "dispatchEvent": {},
       "id": {
         "support_level": "untriaged"
       },
       "label": {},
       "maxRetransmitTime": {
         "support_level": "untriaged"
       },
       "maxRetransmits": {
@@ skipping 133 matching lines @@
       "RTCStatsResponse": {},
       "__getter__": {},
       "namedItem": {},
       "result": {}
     },
     "support_level": "experimental"
   },
   "RadioNodeList": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/#radionodelist",
     "members": {
+      "item": {
+        "support_level": "untriaged"
+      },
       "value": {}
     },
     "support_level": "stable"
   },
   "Range": {
     "comment": "http://dom.spec.whatwg.org/#range",
     "dart_action": "unstable",
     "members": {
       "END_TO_END": {},
       "END_TO_START": {},
@@ skipping 73 matching lines @@
     "members": {
       "BAD_BOUNDARYPOINTS_ERR": {},
       "INVALID_NODE_TYPE_ERR": {},
       "code": {},
       "message": {},
       "name": {},
       "toString": {}
     },
     "support_level": "deprecated"
   },
+  "ReadableByteStream": {
+    "members": {
+      "cancel": {
+        "support_level": "untriaged"
+      },
+      "getReader": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "ReadableByteStreamReader": {
+    "members": {
+      "cancel": {
+        "support_level": "untriaged"
+      },
+      "closed": {
+        "support_level": "untriaged"
+      },
+      "read": {
+        "support_level": "untriaged"
+      },
+      "releaseLock": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "ReadableStream": {
     "members": {
       "cancel": {
         "support_level": "untriaged"
       },
       "closed": {
         "support_level": "untriaged"
       },
+      "getReader": {
+        "support_level": "untriaged"
+      },
       "read": {
         "support_level": "untriaged"
       },
       "state": {
         "support_level": "untriaged"
       },
       "wait": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "ReadableStreamReader": {
+    "members": {
+      "cancel": {
+        "support_level": "untriaged"
+      },
+      "closed": {
+        "support_level": "untriaged"
+      },
+      "read": {
+        "support_level": "untriaged"
+      },
+      "releaseLock": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Rect": {
     "comment": "http://dev.w3.org/csswg/cssom/",
     "dart_action": "suppress",
     "members": {
       "bottom": {},
       "left": {},
       "right": {},
       "top": {}
     },
     "support_level": "deprecated"
   },
   "RelatedEvent": {
     "members": {
+      "RelatedEvent": {},
       "relatedTarget": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "Request": {
     "members": {
       "Request": {},
       "clone": {
         "support_level": "untriaged"
       },
+      "context": {
+        "support_level": "untriaged"
+      },
       "credentials": {
         "support_level": "untriaged"
       },
       "headers": {
         "support_level": "untriaged"
       },
+      "integrity": {
+        "support_level": "untriaged"
+      },
       "mode": {
         "support_level": "untriaged"
       },
       "origin": {
         "support_level": "untriaged"
       },
+      "redirect": {
+        "support_level": "untriaged"
+      },
       "referrer": {
         "support_level": "untriaged"
       },
       "url": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "RequestAnimationFrameCallback": {
@@ skipping 668 matching lines @@
     "members": {
       "createEvent": {},
       "rootElement": {}
     },
     "support_level": "stable"
   },
   "SVGElement": {
     "comment": "http://www.w3.org/TR/SVG/types.html#InterfaceSVGElement",
     "dart_action": "unstable",
     "members": {
+      "blur": {
+        "support_level": "untriaged"
+      },
       "className": {
         "support_level": "untriaged"
       },
+      "focus": {
+        "support_level": "untriaged"
+      },
       "getPresentationAttribute": {
         "support_level": "untriaged"
       },
       "id": {},
+      "offsetHeight": {
+        "support_level": "untriaged"
+      },
+      "offsetLeft": {
+        "support_level": "untriaged"
+      },
+      "offsetParent": {
+        "support_level": "untriaged"
+      },
+      "offsetTop": {
+        "support_level": "untriaged"
+      },
+      "offsetWidth": {
+        "support_level": "untriaged"
+      },
       "onabort": {
         "support_level": "untriaged"
       },
       "onblur": {
         "support_level": "untriaged"
       },
       "oncanplay": {
         "support_level": "untriaged"
       },
       "oncanplaythrough": {
@@ skipping 870 matching lines @@
   },
   "SVGFESpecularLightingElement": {
     "comment": "http://www.w3.org/TR/SVG/filters.html#InterfaceSVGFESpecularLightingElement",
     "dart_action": "unstable",
     "members": {
       "SVGFESpecularLightingElement": {},
       "height": {
         "comment": "http://www.w3.org/TR/SVG/filters.html#InterfaceSVGFilterPrimitiveStandardAttributes"
       },
       "in1": {},
+      "kernelUnitLengthX": {
+        "support_level": "untriaged"
+      },
+      "kernelUnitLengthY": {
+        "support_level": "untriaged"
+      },
       "result": {
         "comment": "http://www.w3.org/TR/SVG/filters.html#InterfaceSVGFilterPrimitiveStandardAttributes"
       },
       "specularConstant": {},
       "specularExponent": {},
       "surfaceScale": {},
       "width": {
         "comment": "http://www.w3.org/TR/SVG/filters.html#InterfaceSVGFilterPrimitiveStandardAttributes"
       },
       "x": {
@@ skipping 2011 matching lines @@
       "availTop": {
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "availWidth": {},
       "colorDepth": {},
       "dispatchEvent": {
         "support_level": "untriaged"
       },
       "height": {},
+      "keepAwake": {
+        "support_level": "untriaged"
+      },
       "lockOrientation": {
         "support_level": "untriaged"
       },
       "orientation": {
         "support_level": "untriaged"
       },
       "pixelDepth": {},
       "removeEventListener": {
         "support_level": "untriaged"
       },
@@ skipping 33 matching lines @@
       "bufferSize": {},
       "onaudioprocess": {
         "support_level": "untriaged"
       },
       "setEventListener": {
         "support_level": "untriaged"
       }
     },
     "support_level": "experimental"
   },
+  "ScrollState": {
+    "members": {
+      "ScrollState": {},
+      "consumeDelta": {
+        "support_level": "untriaged"
+      },
+      "deltaGranularity": {
+        "support_level": "untriaged"
+      },
+      "deltaX": {
+        "support_level": "untriaged"
+      },
+      "deltaY": {
+        "support_level": "untriaged"
+      },
+      "distributeToScrollChainDescendant": {
+        "support_level": "untriaged"
+      },
+      "fromUserInput": {
+        "support_level": "untriaged"
+      },
+      "inInertialPhase": {
+        "support_level": "untriaged"
+      },
+      "isBeginning": {
+        "support_level": "untriaged"
+      },
+      "isEnding": {
+        "support_level": "untriaged"
+      },
+      "shouldPropagate": {
+        "support_level": "untriaged"
+      },
+      "velocityX": {
+        "support_level": "untriaged"
+      },
+      "velocityY": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "ScrollStateCallback": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "SecurityPolicy": {
     "comment": "https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html#securitypolicy",
     "members": {
       "allowsConnectionTo": {},
       "allowsEval": {},
       "allowsFontFrom": {},
       "allowsFormAction": {},
       "allowsFrameFrom": {},
       "allowsImageFrom": {},
       "allowsInlineScript": {},
       "allowsInlineStyle": {},
       "allowsMediaFrom": {},
       "allowsObjectFrom": {},
       "allowsPluginType": {},
       "allowsScriptFrom": {},
       "allowsStyleFrom": {},
       "isActive": {},
       "reportURIs": {}
     },
     "support_level": "experimental"
   },
   "SecurityPolicyViolationEvent": {
     "comment": "https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html#securitypolicyviolationevent-events",
     "members": {
+      "SecurityPolicyViolationEvent": {},
       "blockedURI": {},
       "columnNumber": {},
       "documentURI": {},
       "effectiveDirective": {},
       "lineNumber": {},
       "originalPolicy": {},
       "referrer": {},
       "sourceFile": {},
       "statusCode": {
         "support_level": "untriaged"
@@ skipping 47 matching lines @@
       "setPosition": {
         "support_level": "nonstandard"
       },
       "toString": {},
       "type": {
         "support_level": "nonstandard"
       }
     },
     "support_level": "stable"
   },
+  "ServicePort": {
+    "members": {
+      "close": {
+        "support_level": "untriaged"
+      },
+      "data": {
+        "support_level": "untriaged"
+      },
+      "name": {
+        "support_level": "untriaged"
+      },
+      "postMessage": {
+        "support_level": "untriaged"
+      },
+      "targetURL": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "ServicePortCollection": {
+    "members": {
+      "connect": {
+        "support_level": "untriaged"
+      },
+      "match": {
+        "support_level": "untriaged"
+      },
+      "matchAll": {
+        "support_level": "untriaged"
+      },
+      "onmessage": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "ServicePortConnectEvent": {
+    "members": {
+      "ServicePortConnectEvent": {},
+      "origin": {
+        "support_level": "untriaged"
+      },
+      "respondWith": {
+        "support_level": "untriaged"
+      },
+      "targetURL": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "ServiceWorker": {
     "members": {},
     "support_level": "untriaged"
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   "ServiceWorkerClient": {
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       "postMessage": {
@@ skipping 17 matching lines @@
     "members": {
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       },
       "controller": {
         "support_level": "untriaged"
       },
       "getRegistration": {
         "support_level": "untriaged"
       },
+      "getRegistrations": {
+        "support_level": "untriaged"
+      },
       "installing": {
         "support_level": "untriaged"
       },
+      "onmessage": {
+        "support_level": "untriaged"
+      },
       "ready": {
         "support_level": "untriaged"
       },
       "register": {
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       "unregister": {
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       },
       "waiting": {
@@ skipping 15 matching lines @@
       },
       "fetch": {
         "support_level": "untriaged"
       },
       "nativeCaches": {
         "support_level": "untriaged"
       },
       "onmessage": {
         "support_level": "untriaged"
       },
+      "ports": {
+        "support_level": "untriaged"
+      },
+      "registration": {
+        "support_level": "untriaged"
+      },
       "scope": {
         "support_level": "untriaged"
+      },
+      "skipWaiting": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
+  },
+  "ServiceWorkerMessageEvent": {
+    "members": {
+      "ServiceWorkerMessageEvent": {},
+      "data": {
+        "support_level": "untriaged"
+      },
+      "lastEventId": {
+        "support_level": "untriaged"
+      },
+      "origin": {
+        "support_level": "untriaged"
+      },
+      "ports": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
   },
   "ServiceWorkerRegistration": {
     "members": {
       "active": {
         "support_level": "untriaged"
       },
+      "geofencing": {
+        "support_level": "untriaged"
+      },
+      "getNotifications": {
+        "support_level": "untriaged"
+      },
       "installing": {
         "support_level": "untriaged"
       },
+      "periodicSync": {
+        "support_level": "untriaged"
+      },
+      "pushManager": {
+        "support_level": "untriaged"
+      },
       "scope": {
         "support_level": "untriaged"
       },
+      "showNotification": {
+        "support_level": "untriaged"
+      },
+      "sync": {
+        "support_level": "untriaged"
+      },
       "unregister": {
         "support_level": "untriaged"
       },
+      "update": {
+        "support_level": "untriaged"
+      },
       "waiting": {
         "support_level": "untriaged"
       }
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   },
   "ShadowRoot": {
     "comment": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#api-shadow-root",
     "members": {
       "activeElement": {},
       "applyAuthorStyles": {},
       "cloneNode": {},
+      "delegatesFocus": {
+        "support_level": "untriaged"
+      },
       "elementFromPoint": {},
+      "elementsFromPoint": {
+        "support_level": "untriaged"
+      },
       "getElementById": {},
       "getElementsByClassName": {},
       "getElementsByTagName": {},
       "getElementsByTagNameNS": {},
       "getSelection": {},
       "host": {
         "support_level": "untriaged"
       },
       "innerHTML": {},
       "olderShadowRoot": {
         "support_level": "untriaged"
       },
       "resetStyleInheritance": {},
       "styleSheets": {
         "support_level": "untriaged"
       }
     },
     "support_level": "experimental"
   },
+  "SharedArrayBuffer": {
+    "members": {
+      "byteLength": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "SharedWorker": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/workers.html#shared-workers-and-the-sharedworker-interface",
     "members": {
       "SharedWorker": {},
       "addEventListener": {
         "support_level": "untriaged"
       },
       "dispatchEvent": {
         "support_level": "untriaged"
       },
@@ skipping 68 matching lines @@
       "mode": {
         "support_level": "untriaged"
       },
       "remove": {
         "support_level": "untriaged"
       },
       "removeEventListener": {
         "support_level": "untriaged"
       },
       "timestampOffset": {},
+      "trackDefaults": {
+        "support_level": "untriaged"
+      },
       "updating": {
         "support_level": "untriaged"
       }
     },
     "support_level": "experimental"
   },
   "SourceBufferList": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html#sourcebufferlist",
     "members": {
       "addEventListener": {},
@@ skipping 63 matching lines @@
       "length": {}
     },
     "support_level": "experimental"
   },
   "SpeechRecognition": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#speechreco-section",
     "members": {
       "SpeechRecognition": {},
       "abort": {},
       "addEventListener": {},
+      "audioTrack": {
+        "support_level": "untriaged"
+      },
       "continuous": {},
       "dispatchEvent": {},
       "grammars": {},
       "interimResults": {},
       "lang": {},
       "maxAlternatives": {},
       "onaudioend": {},
       "onaudiostart": {},
       "onend": {},
       "onerror": {},
       "onnomatch": {},
       "onresult": {},
       "onsoundend": {},
       "onsoundstart": {},
       "onspeechend": {},
       "onspeechstart": {},
       "onstart": {},
       "removeEventListener": {},
+      "serviceURI": {
+        "support_level": "untriaged"
+      },
       "start": {},
       "stop": {}
     },
     "support_level": "experimental"
   },
   "SpeechRecognitionAlternative": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#speechrecognitionalternative",
     "members": {
       "confidence": {},
       "transcript": {}
     },
     "support_level": "experimental"
   },
   "SpeechRecognitionError": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#speechreco-error",
     "members": {
+      "SpeechRecognitionError": {},
       "error": {},
       "message": {}
     },
     "support_level": "experimental"
   },
   "SpeechRecognitionEvent": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#speechreco-event",
     "members": {
+      "SpeechRecognitionEvent": {},
       "emma": {},
       "interpretation": {},
       "resultIndex": {},
       "results": {}
     },
     "support_level": "experimental"
   },
   "SpeechRecognitionResult": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#speechrecognitionresult",
     "members": {
@@ skipping 32 matching lines @@
       "speak": {},
       "speaking": {}
     },
     "support_level": "experimental"
   },
   "SpeechSynthesisEvent": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#tts-section",
     "members": {
       "charIndex": {},
       "elapsedTime": {},
-      "name": {}
+      "name": {},
+      "utterance": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "experimental"
   },
   "SpeechSynthesisUtterance": {
     "comment": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#tts-section",
     "members": {
       "SpeechSynthesisUtterance": {},
       "addEventListener": {
         "support_level": "untriaged"
       },
@@ skipping 26 matching lines @@
       "defaultValue": {
         "support_level": "untriaged"
       },
       "lang": {},
       "localService": {},
       "name": {},
       "voiceURI": {}
     },
     "support_level": "experimental"
   },
+  "StashedMessagePort": {
+    "members": {
+      "name": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "StashedPortCollection": {
+    "members": {
+      "add": {
+        "support_level": "untriaged"
+      },
+      "onmessage": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "StereoPannerNode": {
+    "members": {
+      "pan": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Storage": {
     "comment": "http://www.w3.org/TR/webstorage/#the-storage-interface",
     "dart_action": "unstable",
     "members": {
       "Storage": {},
       "__delete__": {},
       "__getter__": {},
       "__setter__": {},
       "clear": {},
       "getItem": {},
       "key": {},
       "length": {},
       "removeItem": {},
       "setItem": {}
     },
     "support_level": "stable"
   },
   "StorageErrorCallback": {
     "comment": "http://www.w3.org/TR/quota-api/#storageerrorcallback-callback",
     "members": {
       "handleEvent": {}
     },
     "support_level": "experimental"
   },
   "StorageEvent": {
     "comment": "http://www.w3.org/TR/webstorage/#the-storage-event",
     "dart_action": "unstable",
     "members": {
+      "StorageEvent": {},
       "initStorageEvent": {},
       "key": {},
       "newValue": {},
       "oldValue": {},
       "storageArea": {},
       "url": {}
     },
     "support_level": "stable"
   },
   "StorageInfo": {
     "comment": "http://www.w3.org/TR/file-system-api/",
     "members": {
       "PERSISTENT": {},
       "TEMPORARY": {},
       "queryUsageAndQuota": {},
       "quota": {
         "support_level": "untriaged"
       },
       "requestQuota": {},
       "usage": {
         "support_level": "untriaged"
       }
     },
     "support_level": "experimental"
   },
+  "StorageManager": {
+    "members": {
+      "persistentPermission": {
+        "support_level": "untriaged"
+      },
+      "requestPersistent": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "StorageQuota": {
     "comment": "http://www.w3.org/TR/quota-api/#idl-def-StorageQuota",
     "members": {
       "queryInfo": {
         "support_level": "untriaged"
       },
       "queryUsageAndQuota": {},
       "requestPersistentQuota": {
         "support_level": "untriaged"
       },
@@ skipping 84 matching lines @@
       },
       "sign": {
         "support_level": "untriaged"
       },
       "verify": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "SyncEvent": {
+    "members": {
+      "SyncEvent": {},
+      "registration": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "SyncManager": {
+    "members": {
+      "getRegistration": {
+        "support_level": "untriaged"
+      },
+      "getRegistrations": {
+        "support_level": "untriaged"
+      },
+      "permissionState": {
+        "support_level": "untriaged"
+      },
+      "register": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "SyncRegistration": {
+    "members": {
+      "done": {
+        "support_level": "untriaged"
+      },
+      "tag": {
+        "support_level": "untriaged"
+      },
+      "unregister": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Text": {
     "comment": "http://dom.spec.whatwg.org/#interface-text",
     "members": {
       "Text": {},
       "getDestinationInsertionPoints": {
         "support_level": "untriaged"
       },
       "replaceWholeText": {
         "comment": "http://dom.spec.whatwg.org/#dom-text-replacewholetext",
         "dart_action": "suppress",
@@ skipping 290 matching lines @@
       },
       "identifier": {},
       "pageX": {},
       "pageY": {},
       "radiusX": {
         "support_level": "untriaged"
       },
       "radiusY": {
         "support_level": "untriaged"
       },
+      "region": {
+        "support_level": "untriaged"
+      },
+      "rotationAngle": {
+        "support_level": "untriaged"
+      },
       "screenX": {},
       "screenY": {},
       "target": {},
       "webkitForce": {
         "support_level": "experimental"
       },
       "webkitRadiusX": {
         "support_level": "experimental"
       },
       "webkitRadiusY": {
@@ skipping 20 matching lines @@
     "support_level": "experimental"
   },
   "TouchList": {
     "comment": "http://www.w3.org/TR/touch-events/, http://www.chromestatus.com/features",
     "members": {
       "item": {},
       "length": {}
     },
     "support_level": "experimental"
   },
+  "TrackDefault": {
+    "members": {
+      "TrackDefault": {},
+      "byteStreamTrackID": {
+        "support_level": "untriaged"
+      },
+      "kinds": {
+        "support_level": "untriaged"
+      },
+      "label": {
+        "support_level": "untriaged"
+      },
+      "language": {
+        "support_level": "untriaged"
+      },
+      "type": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "TrackDefaultList": {
+    "members": {
+      "TrackDefaultList": {},
+      "item": {
+        "support_level": "untriaged"
+      },
+      "length": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "TrackEvent": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#trackevent",
     "dart_action": "unstable",
     "members": {
+      "TrackEvent": {},
       "track": {}
     },
     "support_level": "experimental"
   },
   "TransitionEvent": {
     "comment": "http://dev.w3.org/csswg/css-transitions/#Events-TransitionEvent",
     "members": {
+      "TransitionEvent": {},
       "elapsedTime": {},
       "propertyName": {},
       "pseudoElement": {}
     },
     "support_level": "stable"
   },
   "TreeWalker": {
     "comment": "http://dom.spec.whatwg.org/#treewalker",
     "dart_action": "unstable",
     "members": {
@@ skipping 12 matching lines @@
       "previousNode": {},
       "previousSibling": {},
       "root": {},
       "whatToShow": {}
     },
     "support_level": "stable"
   },
   "UIEvent": {
     "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-UIEvent",
     "members": {
+      "UIEvent": {},
       "charCode": {
         "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#legacy-key-attributes",
         "dart_action": "unstable",
         "support_level": "deprecated"
       },
       "detail": {},
       "initUIEvent": {},
       "keyCode": {
         "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#legacy-key-attributes",
         "dart_action": "unstable",
@@ skipping 12 matching lines @@
       "pageX": {
         "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-mouseevents",
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
       "pageY": {
         "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-mouseevents",
         "dart_action": "experimental",
         "support_level": "nonstandard"
       },
+      "sourceCapabilities": {
+        "support_level": "untriaged"
+      },
+      "sourceDevice": {
+        "support_level": "untriaged"
+      },
       "view": {},
       "which": {
         "comment": "http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#legacy-key-attributes",
         "dart_action": "unstable",
         "support_level": "deprecated"
       }
     },
     "support_level": "stable"
   },
   "URL": {
@@ skipping 118 matching lines @@
       },
       "search": {
         "support_level": "untriaged"
       },
       "toString": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "USB": {
+    "members": {
+      "getDevices": {
+        "support_level": "untriaged"
+      },
+      "requestDevice": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBAlternateInterface": {
+    "members": {
+      "USBAlternateInterface": {},
+      "alternateSetting": {
+        "support_level": "untriaged"
+      },
+      "endpoints": {
+        "support_level": "untriaged"
+      },
+      "interfaceClass": {
+        "support_level": "untriaged"
+      },
+      "interfaceName": {
+        "support_level": "untriaged"
+      },
+      "interfaceProtocol": {
+        "support_level": "untriaged"
+      },
+      "interfaceSubclass": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBConfiguration": {
+    "members": {
+      "USBConfiguration": {},
+      "configurationName": {
+        "support_level": "untriaged"
+      },
+      "configurationValue": {
+        "support_level": "untriaged"
+      },
+      "interfaces": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBConnectionEvent": {
+    "members": {
+      "USBConnectionEvent": {},
+      "device": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBDevice": {
+    "members": {
+      "claimInterface": {
+        "support_level": "untriaged"
+      },
+      "clearHalt": {
+        "support_level": "untriaged"
+      },
+      "close": {
+        "support_level": "untriaged"
+      },
+      "configurations": {
+        "support_level": "untriaged"
+      },
+      "controlTransferIn": {
+        "support_level": "untriaged"
+      },
+      "controlTransferOut": {
+        "support_level": "untriaged"
+      },
+      "deviceClass": {
+        "support_level": "untriaged"
+      },
+      "deviceProtocol": {
+        "support_level": "untriaged"
+      },
+      "deviceSubclass": {
+        "support_level": "untriaged"
+      },
+      "deviceVersionMajor": {
+        "support_level": "untriaged"
+      },
+      "deviceVersionMinor": {
+        "support_level": "untriaged"
+      },
+      "deviceVersionSubminor": {
+        "support_level": "untriaged"
+      },
+      "getConfiguration": {
+        "support_level": "untriaged"
+      },
+      "guid": {
+        "support_level": "untriaged"
+      },
+      "manufacturerName": {
+        "support_level": "untriaged"
+      },
+      "open": {
+        "support_level": "untriaged"
+      },
+      "productId": {
+        "support_level": "untriaged"
+      },
+      "productName": {
+        "support_level": "untriaged"
+      },
+      "releaseInterface": {
+        "support_level": "untriaged"
+      },
+      "reset": {
+        "support_level": "untriaged"
+      },
+      "serialNumber": {
+        "support_level": "untriaged"
+      },
+      "setConfiguration": {
+        "support_level": "untriaged"
+      },
+      "setInterface": {
+        "support_level": "untriaged"
+      },
+      "transferIn": {
+        "support_level": "untriaged"
+      },
+      "transferOut": {
+        "support_level": "untriaged"
+      },
+      "usbVersionMajor": {
+        "support_level": "untriaged"
+      },
+      "usbVersionMinor": {
+        "support_level": "untriaged"
+      },
+      "usbVersionSubminor": {
+        "support_level": "untriaged"
+      },
+      "vendorId": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBEndpoint": {
+    "members": {
+      "USBEndpoint": {},
+      "direction": {
+        "support_level": "untriaged"
+      },
+      "endpointNumber": {
+        "support_level": "untriaged"
+      },
+      "packetSize": {
+        "support_level": "untriaged"
+      },
+      "type": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBInTransferResult": {
+    "members": {
+      "data": {
+        "support_level": "untriaged"
+      },
+      "status": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBInterface": {
+    "members": {
+      "USBInterface": {},
+      "alternates": {
+        "support_level": "untriaged"
+      },
+      "interfaceNumber": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "USBOutTransferResult": {
+    "members": {
+      "bytesWritten": {
+        "support_level": "untriaged"
+      },
+      "status": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "Uint16Array": {
     "comment": "http://www.khronos.org/registry/typedarray/specs/latest/",
     "members": {
       "BYTES_PER_ELEMENT": {},
       "length": {},
       "setElements": {},
       "subarray": {}
     },
     "support_level": "stable"
   },
@@ skipping 19 matching lines @@
   },
   "Uint8ClampedArray": {
     "comment": "http://www.khronos.org/registry/typedarray/specs/latest/",
     "members": {
       "length": {},
       "setElements": {},
       "subarray": {}
     },
     "support_level": "stable"
   },
+  "VRDevice": {
+    "members": {
+      "deviceId": {
+        "support_level": "untriaged"
+      },
+      "deviceName": {
+        "support_level": "untriaged"
+      },
+      "hardwareUnitId": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "VREyeParameters": {
+    "members": {
+      "currentFieldOfView": {
+        "support_level": "untriaged"
+      },
+      "eyeTranslation": {
+        "support_level": "untriaged"
+      },
+      "maximumFieldOfView": {
+        "support_level": "untriaged"
+      },
+      "minimumFieldOfView": {
+        "support_level": "untriaged"
+      },
+      "recommendedFieldOfView": {
+        "support_level": "untriaged"
+      },
+      "renderRect": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "VRFieldOfView": {
+    "members": {
+      "VRFieldOfView": {},
+      "downDegrees": {
+        "support_level": "untriaged"
+      },
+      "leftDegrees": {
+        "support_level": "untriaged"
+      },
+      "rightDegrees": {
+        "support_level": "untriaged"
+      },
+      "upDegrees": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
+  "VRPositionState": {
+    "members": {
+      "angularAcceleration": {
+        "support_level": "untriaged"
+      },
+      "angularVelocity": {
+        "support_level": "untriaged"
+      },
+      "linearAcceleration": {
+        "support_level": "untriaged"
+      },
+      "linearVelocity": {
+        "support_level": "untriaged"
+      },
+      "orientation": {
+        "support_level": "untriaged"
+      },
+      "position": {
+        "support_level": "untriaged"
+      },
+      "timeStamp": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "VTTCue": {
     "members": {
       "VTTCue": {},
       "align": {
         "support_level": "untriaged"
       },
       "getCueAsHTML": {
         "support_level": "untriaged"
       },
       "line": {
@@ skipping 70 matching lines @@
   "ValidityState": {
     "comment": "http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#validitystate",
     "members": {
       "badInput": {},
       "customError": {},
       "patternMismatch": {},
       "rangeOverflow": {},
       "rangeUnderflow": {},
       "stepMismatch": {},
       "tooLong": {},
+      "tooShort": {
+        "support_level": "untriaged"
+      },
       "typeMismatch": {},
       "valid": {},
       "valueMissing": {}
     },
     "support_level": "stable"
   },
   "VideoPlaybackQuality": {
     "members": {
       "corruptedVideoFrames": {
         "support_level": "untriaged"
@@ skipping 64 matching lines @@
       "curve": {},
       "oversample": {}
     },
     "support_level": "experimental"
   },
   "WaveTable": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#WaveTable-section",
     "members": {},
     "support_level": "experimental"
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+        "support_level": "untriaged"
+      },
+      "getRenderbufferParameter": {
+        "support_level": "untriaged"
+      },
+      "getSamplerParameter": {
+        "support_level": "untriaged"
+      },
+      "getShaderInfoLog": {
+        "support_level": "untriaged"
+      },
+      "getShaderParameter": {
+        "support_level": "untriaged"
+      },
+      "getShaderPrecisionFormat": {
+        "support_level": "untriaged"
+      },
+      "getShaderSource": {
+        "support_level": "untriaged"
+      },
+      "getSupportedExtensions": {
+        "support_level": "untriaged"
+      },
+      "getSyncParameter": {
+        "support_level": "untriaged"
+      },
+      "getTexParameter": {
+        "support_level": "untriaged"
+      },
+      "getUniform": {
+        "support_level": "untriaged"
+      },
+      "getUniformLocation": {
+        "support_level": "untriaged"
+      },
+      "hint": {
+        "support_level": "untriaged"
+      },
+      "invalidateFramebuffer": {
+        "support_level": "untriaged"
+      },
+      "linkProgram": {
+        "support_level": "untriaged"
+      },
+      "pauseTransformFeedback": {
+        "support_level": "untriaged"
+      },
+      "readBuffer": {
+        "support_level": "untriaged"
+      },
+      "resumeTransformFeedback": {
+        "support_level": "untriaged"
+      },
+      "shaderSource": {
+        "support_level": "untriaged"
+      },
+      "stencilOp": {
+        "support_level": "untriaged"
+      },
+      "stencilOpSeparate": {
+        "support_level": "untriaged"
+      },
+      "transformFeedbackVaryings": {
+        "support_level": "untriaged"
+      },
+      "uniform1fv": {
+        "support_level": "untriaged"
+      },
+      "uniform1iv": {
+        "support_level": "untriaged"
+      },
+      "uniform2fv": {
+        "support_level": "untriaged"
+      },
+      "uniform2iv": {
+        "support_level": "untriaged"
+      },
+      "uniform3fv": {
+        "support_level": "untriaged"
+      },
+      "uniform3iv": {
+        "support_level": "untriaged"
+      },
+      "uniform4fv": {
+        "support_level": "untriaged"
+      },
+      "uniform4iv": {
+        "support_level": "untriaged"
+      },
+      "useProgram": {
+        "support_level": "untriaged"
+      },
+      "validateProgram": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "WebGLActiveInfo": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.11",
     "dart_action": "unstable",
     "members": {
       "name": {},
       "size": {},
       "type": {}
     },
     "support_level": "stable"
   },
   "WebGLBuffer": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.4",
     "dart_action": "unstable",
     "members": {},
     "support_level": "stable"
   },
+  "WebGLCompressedTextureASTC": {
+    "members": {
+      "COMPRESSED_RGBA_ASTC_10x10_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_10x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_10x6_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_10x8_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_12x10_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_12x12_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_4x4_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_5x4_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_5x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_6x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_6x6_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_8x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_8x6_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_RGBA_ASTC_8x8_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR": {
+        "support_level": "untriaged"
+      },
+      "COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "WebGLCompressedTextureATC": {
     "comment": "http://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_atc/",
     "members": {
       "COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL": {},
       "COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL": {},
       "COMPRESSED_RGB_ATC_WEBGL": {}
     },
     "support_level": "experimental"
   },
   "WebGLCompressedTextureETC1": {
@@ skipping 39 matching lines @@
       "premultipliedAlpha": {},
       "preserveDrawingBuffer": {},
       "stencil": {}
     },
     "support_level": "stable"
   },
   "WebGLContextEvent": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#WEBGLCONTEXTEVENT",
     "dart_action": "unstable",
     "members": {
+      "WebGLContextEvent": {},
       "statusMessage": {}
     },
     "support_level": "stable"
   },
   "WebGLDebugRendererInfo": {
     "comment": "http://www.khronos.org/registry/webgl/extensions/WEBGL_debug_renderer_info/",
     "dart_action": "experimental",
     "members": {
       "UNMASKED_RENDERER_WEBGL": {},
       "UNMASKED_VENDOR_WEBGL": {}
@@ skipping 71 matching lines @@
       "restoreContext": {}
     },
     "support_level": "experimental"
   },
   "WebGLProgram": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.6",
     "dart_action": "unstable",
     "members": {},
     "support_level": "stable"
   },
+  "WebGLQuery": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "WebGLRenderbuffer": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.7",
     "dart_action": "unstable",
     "members": {},
     "support_level": "stable"
   },
   "WebGLRenderingContext": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.14",
     "dart_action": "unstable",
     "members": {
@@ skipping 1809 matching lines @@
       },
       "vertexAttribPointer": {
         "support_level": "untriaged"
       },
       "viewport": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "WebGLSampler": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "WebGLShader": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.8",
     "members": {},
     "support_level": "stable"
   },
   "WebGLShaderPrecisionFormat": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.12",
     "members": {
       "precision": {},
       "rangeMax": {},
       "rangeMin": {}
     },
     "support_level": "stable"
   },
+  "WebGLSync": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "WebGLTexture": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.9",
     "members": {},
     "support_level": "stable"
   },
+  "WebGLTimerQueryEXT": {
+    "members": {},
+    "support_level": "untriaged"
+  },
+  "WebGLTransformFeedback": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "WebGLUniformLocation": {
     "comment": "http://www.khronos.org/registry/webgl/specs/latest/#5.10",
     "members": {},
     "support_level": "stable"
   },
+  "WebGLVertexArrayObject": {
+    "members": {},
+    "support_level": "untriaged"
+  },
   "WebGLVertexArrayObjectOES": {
     "comment": "http://www.khronos.org/registry/webgl/extensions/OES_vertex_array_object/",
     "dart_action": "experimental",
     "members": {},
     "support_level": "experimental"
   },
   "WebKitAnimationEvent": {
     "comment": "http://www.w3.org/TR/css3-animations/#AnimationEvent-interface",
     "members": {
       "animationName": {},
@@ skipping 223 matching lines @@
       "url": {}
     },
     "support_level": "stable"
   },
   "WheelEvent": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Events/#events-wheelevents",
     "members": {
       "DOM_DELTA_LINE": {},
       "DOM_DELTA_PAGE": {},
       "DOM_DELTA_PIXEL": {},
+      "WheelEvent": {},
       "deltaMode": {},
       "deltaX": {},
       "deltaY": {},
       "deltaZ": {},
       "initWebKitWheelEvent": {
         "support_level": "experimental"
       },
       "webkitDirectionInvertedFromDevice": {
         "support_level": "experimental"
       }
@@ skipping 17 matching lines @@
       "__getter__": {},
       "addEventListener": {},
       "alert": {},
       "applicationCache": {},
       "atob": {},
       "blur": {
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "btoa": {},
+      "caches": {
+        "support_level": "untriaged"
+      },
       "cancelAnimationFrame": {},
+      "cancelIdleCallback": {
+        "support_level": "untriaged"
+      },
       "captureEvents": {
         "comment": "http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-flow-capture",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "clearInterval": {},
       "clearTimeout": {},
       "clientInformation": {
         "support_level": "nonstandard"
       },
@@ skipping 17 matching lines @@
       "devicePixelRatio": {
         "comment": "http://www.quirksmode.org/blog/archives/2012/06/devicepixelrati.html",
         "support_level": "nonstandard"
       },
       "dispatchEvent": {},
       "document": {},
       "event": {
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
+      "fetch": {
+        "support_level": "untriaged"
+      },
       "find": {
         "support_level": "nonstandard"
       },
       "focus": {
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "frameElement": {},
       "frames": {},
       "getComputedStyle": {},
@@ skipping 193 matching lines @@
       "postMessage": {},
       "print": {},
       "prompt": {},
       "releaseEvents": {
         "comment": "http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-flow-capture",
         "dart_action": "suppress",
         "support_level": "deprecated"
       },
       "removeEventListener": {},
       "requestAnimationFrame": {},
+      "requestIdleCallback": {
+        "support_level": "untriaged"
+      },
       "resizeBy": {},
       "resizeTo": {},
       "screen": {},
       "screenLeft": {},
       "screenTop": {},
       "screenX": {},
       "screenY": {},
       "scroll": {},
       "scrollBy": {},
       "scrollTo": {},
@@ skipping 68 matching lines @@
     "members": {
       "atob": {
         "support_level": "untriaged"
       },
       "btoa": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
+  "WindowClient": {
+    "members": {
+      "focus": {
+        "support_level": "untriaged"
+      },
+      "focused": {
+        "support_level": "untriaged"
+      },
+      "navigate": {
+        "support_level": "untriaged"
+      },
+      "visibilityState": {
+        "support_level": "untriaged"
+      }
+    },
+    "support_level": "untriaged"
+  },
   "WindowEventHandlers": {
     "members": {
       "onbeforeunload": {
         "support_level": "untriaged"
       },
       "onhashchange": {
         "support_level": "untriaged"
       },
       "onmessage": {
         "support_level": "untriaged"
@@ skipping 160 matching lines @@
       },
       "addEventListener": {
         "support_level": "untriaged"
       },
       "atob": {
         "support_level": "untriaged"
       },
       "btoa": {
         "support_level": "untriaged"
       },
+      "caches": {
+        "support_level": "untriaged"
+      },
       "clearInterval": {
         "support_level": "untriaged"
       },
       "clearTimeout": {
         "support_level": "untriaged"
       },
       "close": {
         "support_level": "untriaged"
       },
       "console": {
         "support_level": "untriaged"
       },
       "createImageBitmap": {
         "support_level": "untriaged"
       },
       "crypto": {
         "support_level": "untriaged"
       },
       "dispatchEvent": {
         "support_level": "untriaged"
       },
+      "fetch": {
+        "support_level": "untriaged"
+      },
       "importScripts": {
         "support_level": "untriaged"
       },
       "indexedDB": {
         "support_level": "untriaged"
       },
       "location": {
         "support_level": "untriaged"
       },
       "navigator": {
@@ skipping 100 matching lines @@
         "support_level": "experimental"
       },
       "webkitTemporaryStorage": {
         "support_level": "experimental"
       }
     },
     "support_level": "experimental"
   },
   "WorkerPerformance": {
     "members": {
+      "clearMarks": {
+        "support_level": "untriaged"
+      },
+      "clearMeasures": {
+        "support_level": "untriaged"
+      },
+      "clearResourceTimings": {
+        "support_level": "untriaged"
+      },
+      "mark": {
+        "support_level": "untriaged"
+      },
+      "measure": {
+        "support_level": "untriaged"
+      },
       "memory": {
         "support_level": "untriaged"
       },
       "now": {
         "support_level": "untriaged"
+      },
+      "setResourceTimingBufferSize": {
+        "support_level": "untriaged"
+      },
+      "webkitClearResourceTimings": {
+        "support_level": "untriaged"
+      },
+      "webkitSetResourceTimingBufferSize": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "XMLDocument": {
     "members": {},
     "support_level": "untriaged"
   },
   "XMLHttpRequest": {
     "comment": "http://xhr.spec.whatwg.org/#interface-xmlhttprequest",
@@ skipping 211 matching lines @@
       "importStylesheet": {},
       "removeParameter": {},
       "reset": {},
       "setParameter": {},
       "transformToDocument": {},
       "transformToFragment": {}
     },
     "support_level": "nonstandard"
   }
 }