[DevTools] Replace usages of document with custom functions.

Source/devtools/front_end/timeline/TransformController.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
  * @extends {WebInspector.Object}
  * @param {!Element} element
  * @param {boolean=} disableRotate
  */
 WebInspector.TransformController = function(element, disableRotate)
 {
     this._shortcuts = {};
     this.element = element;
     this._registerShortcuts();
     element.addEventListener("keydown", this._onKeyDown.bind(this), false);
     element.addEventListener("keyup", this._onKeyUp.bind(this), false);
     element.addEventListener("mousemove", this._onMouseMove.bind(this), false);
     element.addEventListener("mousedown", this._onMouseDown.bind(this), false);
     element.addEventListener("mouseup", this._onMouseUp.bind(this), false);
     element.addEventListener("mousewheel", this._onMouseWheel.bind(this), false);
     this._disableRotate = disableRotate;
 
-    this._controlPanelElement = document.createElement("div");
+    this._controlPanelElement = createElement("div");
     this._controlPanelElement.classList.add("transform-control-panel");
 
     this._modeButtons = {};
     if (!disableRotate) {
         var panModeButton = new WebInspector.StatusBarButton(WebInspector.UIString("Pan mode (X)"), "transform-mode-pan");
         panModeButton.addEventListener("click", this._setMode.bind(this, WebInspector.TransformController.Modes.Pan));
         this._modeButtons[WebInspector.TransformController.Modes.Pan] = panModeButton;
         this._controlPanelElement.appendChild(panModeButton.element);
         var rotateModeButton = new WebInspector.StatusBarButton(WebInspector.UIString("Rotate mode (V)"), "transform-mode-rotate");
         rotateModeButton.addEventListener("click", this._setMode.bind(this, WebInspector.TransformController.Modes.Rotate));
@@ skipping 284 matching lines @@
      */
     _onMouseUp: function(event)
     {
         if (event.which !== 1)
             return;
         this._resetReferencePoint();
     },
 
     __proto__: WebInspector.Object.prototype
 }