Update the metrics side bar pane and computed style pane after main frame resize.

Source/devtools/front_end/ResourceTreeModel.js

 /*
  * Copyright (C) 2011 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 38 matching lines @@
     InspectorBackend.registerPageDispatcher(new WebInspector.PageDispatcher(this));
 
     this._pendingConsoleMessages = {};
     this._securityOriginFrameCount = {};
 }
 
 WebInspector.ResourceTreeModel.EventTypes = {
     FrameAdded: "FrameAdded",
     FrameNavigated: "FrameNavigated",
     FrameDetached: "FrameDetached",
+    FrameResized: "FrameResized",
     MainFrameNavigated: "MainFrameNavigated",
     MainFrameCreatedOrNavigated: "MainFrameCreatedOrNavigated",
     ResourceAdded: "ResourceAdded",
     WillLoadCachedResources: "WillLoadCachedResources",
     CachedResourcesLoaded: "CachedResourcesLoaded",
     DOMContentLoaded: "DOMContentLoaded",
     Load: "Load",
     InspectedURLChanged: "InspectedURLChanged",
     SecurityOriginAdded: "SecurityOriginAdded",
     SecurityOriginRemoved: "SecurityOriginRemoved",
@@ skipping 625 matching lines @@
     },
 
     frameScheduledNavigation: function(frameId, delay)
     {
     },
 
     frameClearedScheduledNavigation: function(frameId)
     {
     },
 
+    frameResized: function()
+    {
+        this._resourceTreeModel.dispatchEventToListeners(WebInspector.ResourceTreeModel.EventTypes.FrameResized, null);
+    },
+
     javascriptDialogOpening: function(message)
     {
     },
 
     javascriptDialogClosed: function()
     {
     },
 
     scriptsEnabled: function(isEnabled)
     {
@@ skipping 19 matching lines @@
     screencastVisibilityChanged: function(visible)
     {
         this._resourceTreeModel.dispatchEventToListeners(WebInspector.ResourceTreeModel.EventTypes.ScreencastVisibilityChanged, {visible:visible});
     }
 }
 
 /**
  * @type {WebInspector.ResourceTreeModel}
  */
 WebInspector.resourceTreeModel = null;