Layers view: Extract zoom/pan/rotate logic into transorm controller

Source/devtools/front_end/LayersPanel.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 importScript("LayerTreeModel.js");
 importScript("LayerTree.js");
 importScript("Layers3DView.js");
 importScript("LayerDetailsView.js");
 importScript("PaintProfilerView.js");
+importScript("TransformController.js");
 
 /**
  * @constructor
  * @extends {WebInspector.PanelWithSidebarTree}
  */
 WebInspector.LayersPanel = function()
 {
     WebInspector.PanelWithSidebarTree.call(this, "layers", 225);
     this.registerRequiredCSS("layersPanel.css");
 
@@ skipping 112 matching lines @@
         if (nodeId)
             WebInspector.domAgent.highlightDOMNode(nodeId);
         else
             WebInspector.domAgent.hideDOMNodeHighlight();
         this._layerTree.hoverLayer(layer);
         this._layers3DView.hoverLayer(layer);
     },
 
     __proto__: WebInspector.PanelWithSidebarTree.prototype
 }