Devtools: [WIP] Implement enhanced devtools extension language APIs

Source/devtools/front_end/elements/StylesSidebarPane.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 2983 matching lines @@
     _isValueSuggestion: function(word)
     {
         if (!word)
             return false;
         word = word.toLowerCase();
         return this._cssCompletions.keySet().hasOwnProperty(word);
     },
 
     /**
      * @param {!Element} proxyElement
+     * @param {string} text
+     * @param {number} cursorOffset
      * @param {!Range} wordRange
      * @param {boolean} force
      * @param {function(!Array.<string>, number=)} completionsReadyCallback
      */
-    _buildPropertyCompletions: function(proxyElement, wordRange, force, completionsReadyCallback)
+    _buildPropertyCompletions: function(proxyElement, text, cursorOffset, wordRange, force, completionsReadyCallback)
     {
         var prefix = wordRange.toString().toLowerCase();
         if (!prefix && !force && (this._isEditingName || proxyElement.textContent.length)) {
             completionsReadyCallback([]);
             return;
         }
 
         var results = this._cssCompletions.startsWith(prefix);
         if (!this._isEditingName && !results.length && prefix.length > 1 && "!important".startsWith(prefix))
             results.push("!important");
@@ skipping 218 matching lines @@
 
     /**
      * @override
      * @return {?WebInspector.ToolbarItem}
      */
     item: function()
     {
         return this._button;
     }
 }