Cleaning up a bunch of DOM generation tables

tools/dom/dom.json

 {
   "ANGLEInstancedArrays": {
     "members": {
       "VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE": {
         "support_level": "untriaged"
       },
       "drawArraysInstancedANGLE": {
         "support_level": "untriaged"
       },
       "drawElementsInstancedANGLE": {
@@ skipping 1823 matching lines @@
         "support_level": "experimental"
       },
       "onwebkitpointerlockchange": {
         "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"
+      },
       "preferredStylesheetSet": {
         "comment": "http://dev.w3.org/csswg/cssom/#widl-Document-preferredStyleSheetSet"
       },
       "queryCommandEnabled": {},
       "queryCommandIndeterm": {},
       "queryCommandState": {},
       "queryCommandSupported": {},
       "queryCommandValue": {},
       "querySelector": {},
       "querySelectorAll": {},
@@ skipping 363 matching lines @@
         "support_level": "deprecated"
       },
       "onwebkitfullscreenchange": {
         "comment": "https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html",
         "support_level": "experimental"
       },
       "onwebkitfullscreenerror": {
         "comment": "https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html",
         "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"
       },
       "previousElementSibling": {},
       "pseudo": {
         "support_level": "untriaged"
       },
       "querySelector": {},
@@ skipping 5448 matching lines @@
       "onresize": {},
       "onscroll": {},
       "onsearch": {
         "comment": "http://www.w3.org/TR/html-markup/input.search.html",
         "support_level": "experimental"
       },
       "onselect": {},
       "onselectstart": {},
       "onsubmit": {},
       "onunload": {},
+      "onwheel": {
+        "support_level": "untriaged"
+      },
       "parentNode": {},
       "previousSibling": {},
       "removeEventListener": {
         "support_level": "untriaged"
       }
     },
     "support_level": "stable"
   },
   "SVGElementInstanceList": {
     "comment": "http://www.w3.org/TR/SVG/struct.html#InterfaceSVGElementInstanceList",
@@ skipping 2500 matching lines @@
       "width": {}
     },
     "support_level": "stable"
   },
   "ScriptProcessorNode": {
     "comment": "https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#ScriptProcessorNode",
     "members": {
       "_setEventListener": {
         "support_level": "nonstandard"
       },
-      "bufferSize": {}
+      "bufferSize": {},
+      "onaudioprocess": {
+        "support_level": "untriaged"
+      }
     },
     "support_level": "experimental"
   },
   "SecurityPolicy": {
     "comment": "https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html#securitypolicy",
     "members": {
       "allowsConnectionTo": {},
       "allowsEval": {},
       "allowsFontFrom": {},
       "allowsFormAction": {},
@@ skipping 115 matching lines @@
     "members": {
       "name": {},
       "onconnect": {}
     },
     "support_level": "nonstandard"
   },
   "SharedWorkerGlobalScope": {
     "members": {
       "name": {
         "support_level": "untriaged"
+      },
+      "onconnect": {
+        "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "SourceBuffer": {
     "comment": "https://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html#sourcebuffer",
     "members": {
       "abort": {},
       "addEventListener": {
         "support_level": "untriaged"
@@ skipping 1869 matching lines @@
       },
       "onwebkitanimationiteration": {
         "support_level": "experimental"
       },
       "onwebkitanimationstart": {
         "support_level": "experimental"
       },
       "onwebkittransitionend": {
         "support_level": "deprecated"
       },
+      "onwheel": {
+        "support_level": "untriaged"
+      },
       "open": {},
       "openDatabase": {
         "comment": "http://www.w3.org/TR/webdatabase/",
         "dart_action": "experimental",
         "support_level": "deprecated"
       },
       "opener": {},
       "outerHeight": {},
       "outerWidth": {},
       "pagePopupController": {
@@ skipping 468 matching lines @@
       },
       "onloadend": {
         "support_level": "untriaged"
       },
       "onloadstart": {
         "support_level": "untriaged"
       },
       "onprogress": {
         "support_level": "untriaged"
       },
+      "ontimeout": {
+        "support_level": "untriaged"
+      },
       "removeEventListener": {
         "support_level": "untriaged"
       }
     },
     "support_level": "untriaged"
   },
   "XMLHttpRequestException": {
     "comment": "http://www.w3.org/TR/2007/WD-XMLHttpRequest-20070227/#exceptions",
     "dart_action": "experimental",
     "members": {
@@ skipping 123 matching lines @@
       "importStylesheet": {},
       "removeParameter": {},
       "reset": {},
       "setParameter": {},
       "transformToDocument": {},
       "transformToFragment": {}
     },
     "support_level": "nonstandard"
   }
 }