Modernizing HttpRequest documentation.

tools/dom/dom.json

 {
   "AbstractWorker": {
     "comment": "http://www.w3.org/TR/workers/#the-abstractworker-abstract-interface",
     "members": {
       "addEventListener": {},
       "dispatchEvent": {},
       "onerror": {},
       "removeEventListener": {}
     },
     "support_level": "stable"
@@ skipping 97 matching lines @@
       "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": {},
       "createAnalyser": {},
       "createBiquadFilter": {},
       "createBuffer": {},
       "createBufferSource": {},
       "createChannelMerger": {},
       "createChannelSplitter": {},
       "createConvolver": {},
       "createDelay": {},
       "createDelayNode": {
@@ skipping 145 matching lines @@
       "frequency": {},
       "gain": {},
       "getFrequencyResponse": {},
       "type": {}
     },
     "support_level": "experimental"
   },
   "Blob": {
     "comment": "http://www.w3.org/TR/FileAPI/#dfn-Blob",
     "members": {
+      "Blob": {},
       "size": {},
       "slice": {},
       "type": {}
     },
     "support_level": "stable"
   },
   "CDATASection": {
     "comment": "http://dom.spec.whatwg.org/#cdatasection",
     "dart_action": "suppress",
     "members": {},
@@ skipping 762 matching lines @@
     "members": {
       "name": {},
       "root": {}
     },
     "support_level": "experimental"
   },
   "DOMFormData": {
     "comment": "http://www.w3.org/TR/XMLHttpRequest2/#interface-formdata",
     "members": {
       "DOMFormData": {},
+      "FormData": {
+        "support_level": "untriaged"
+      },
       "append": {}
     },
     "support_level": "stable"
   },
   "DOMImplementation": {
     "comment": "http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490",
     "members": {
       "createCSSStyleSheet": {
         "support_level": "nonstandard"
       },
@@ skipping 69 matching lines @@
       "length": {},
       "namedItem": {},
       "refresh": {}
     },
     "support_level": "nonstandard"
   },
   "DOMPoint": {
     "comment": "http://developer.apple.com/library/safari/#documentation/DataManagement/Reference/DOMWindowAdditionsReference/DOMWindowAdditions/DOMWindowAdditions.html",
     "members": {
       "DOMPoint": {},
+      "_DomPoint": {
+        "support_level": "untriaged"
+      },
       "x": {},
       "y": {}
     },
     "support_level": "nonstandard"
   },
   "DOMSecurityPolicy": {
     "comment": "https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html#securitypolicy",
     "members": {
       "allowsConnectionTo": {},
       "allowsEval": {},
@@ skipping 4482 matching lines @@
       "initMutationEvent": {},
       "newValue": {},
       "prevValue": {},
       "relatedNode": {}
     },
     "support_level": "deprecated"
   },
   "MutationObserver": {
     "comment": "http://www.w3.org/TR/domcore/#interface-mutationobserver",
     "members": {
+      "MutationObserver": {},
       "_observe": {},
       "disconnect": {},
       "observe": {},
       "takeRecords": {}
     },
     "support_level": "stable"
   },
   "MutationRecord": {
     "comment": "http://www.w3.org/TR/domcore/#mutationrecord",
     "members": {
@@ skipping 5920 matching lines @@
         "support_level": "experimental"
       }
     },
     "support_level": "experimental"
   },
   "XMLHttpRequest": {
     "comment": "http://xhr.spec.whatwg.org/#interface-xmlhttprequest",
     "members": {
       "DONE": {},
       "HEADERS_RECEIVED": {},
+      "HttpRequest": {
+        "support_level": "untriaged"
+      },
       "LOADING": {},
       "OPENED": {},
       "UNSENT": {},
       "XMLHttpRequest": {},
       "abort": {},
       "addEventListener": {},
       "dispatchEvent": {},
       "getAllResponseHeaders": {
         "dart_action": "unstable"
       },
@@ skipping 156 matching lines @@
       "importStylesheet": {},
       "removeParameter": {},
       "reset": {},
       "setParameter": {},
       "transformToDocument": {},
       "transformToFragment": {}
     },
     "support_level": "nonstandard"
   }
 }