DevTools: [Documentation] Add property token autodetection

Source/devtools/front_end/documentation/DocumentationURLProvider.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  */
 WebInspector.DocumentationURLProvider = function()
 {
 }
@@ skipping 20 matching lines @@
     { source: window.Number.prototype, url: "javascript/Number/", name: "Number.prototype"},
     { source: window.Error.prototype, url: "javascript/Error/", name: "Error.prototype"},
     { source: window.RegExp.prototype, url: "javascript/RegExp/", name: "RegExp.prototype"}
 ];
 
 /**
  * @const
  */
 WebInspector.DocumentationURLProvider._urlFormat = "http://docs.webplatform.org/w/api.php?action=query&titles=%s%s&prop=revisions&rvprop=timestamp|content&format=json"
 
+/**
+ * @typedef {{url: string, name: string, searchItem: string}}
+ */
+WebInspector.DocumentationURLProvider.ItemDescriptor;
+
 WebInspector.DocumentationURLProvider.prototype = {
     /**
      * @param {string} searchTerm
-     * @return {!Array.<{url: string, name: string}>}
+     * @return {!Array.<!WebInspector.DocumentationURLProvider.ItemDescriptor>}
      */
     itemDescriptors: function(searchTerm)
     {
         var descriptors = [];
         for (var i = 0; i < WebInspector.DocumentationURLProvider._sources.length; ++i) {
             var sourceRef = WebInspector.DocumentationURLProvider._sources[i];
             if (!sourceRef.source.hasOwnProperty(searchTerm))
                 continue;
             descriptors.push(createDescriptor(searchTerm.toUpperCase() === searchTerm ? "constants" : searchTerm));
         }
         return descriptors;
 
         /**
          * @param {string} searchTerm
-         * @return {{url: string, name: string}}
+         * @return {!WebInspector.DocumentationURLProvider.ItemDescriptor}
          */
         function createDescriptor(searchTerm)
         {
             return {
                 url: String.sprintf(WebInspector.DocumentationURLProvider._urlFormat, sourceRef.url, searchTerm),
-                name: sourceRef.name
+                name: sourceRef.name,
+                searchItem: searchTerm
             };
         }
     }
 }