DevTools: [Documentation] Add property token autodetection

Source/devtools/front_end/documentation/DocumentationURLProvider.js

Index: Source/devtools/front_end/documentation/DocumentationURLProvider.js
diff --git a/Source/devtools/front_end/documentation/DocumentationURLProvider.js b/Source/devtools/front_end/documentation/DocumentationURLProvider.js
index bba7b65eb14fb74e722ea3375a3291d7f76dcdbc..dcff947ad7407fb9673e7acf14d773d73aacc72e 100644
--- a/Source/devtools/front_end/documentation/DocumentationURLProvider.js
+++ b/Source/devtools/front_end/documentation/DocumentationURLProvider.js
@@ -41,7 +41,7 @@ WebInspector.DocumentationURLProvider._urlFormat = "http://docs.webplatform.org/
 WebInspector.DocumentationURLProvider.prototype = {
     /**
      * @param {string} searchTerm
-     * @return {!Array.<{url: string, name: string}>}
+     * @return {!Array.<{url: string, name: string, searchItem: string}>}
      */
     itemDescriptors: function(searchTerm)
     {
@@ -62,7 +62,8 @@ WebInspector.DocumentationURLProvider.prototype = {
         {
             return {
                 url: String.sprintf(WebInspector.DocumentationURLProvider._urlFormat, sourceRef.url, searchTerm),
-                name: sourceRef.name
+                name: sourceRef.name,
+                searchItem: searchTerm
             };
         }
     }