DevTools: extract a component for layer viewer

third_party/WebKit/Source/devtools/front_end/layer_viewer/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
@@ skipping 313 matching lines @@
     _onDragEnd: function()
     {
         delete this._originX;
         delete this._originY;
         delete this._oldRotateX;
         delete this._oldRotateY;
     },
 
     __proto__: WebInspector.Object.prototype
 }