DevTools: zoom frames upon double click, iterate over frames using arrows.

Source/devtools/front_end/network/NetworkPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 187 matching lines @@
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     _willReloadPage: function(event)
     {
         this._toggleRecordButton(true);
         if (!this._preserveLogCheckbox.checked())
             this._networkLogView.reset();
-        if (this._filmStripView)
+        if (this.isShowing() && this._filmStripView)
             this._filmStripView.startRecording();
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     _load: function(event)
     {
-        if (this._filmStripView)
+        if (this._filmStripView && this._filmStripView.isRecording())
             setTimeout(this._toggleRecordButton.bind(this, false), 1000);
     },
 
     _toggleLargerRequests: function()
     {
         this._updateUI();
     },
 
     _toggleShowOverview: function()
     {
@@ skipping 339 matching lines @@
 WebInspector.NetworkPanelFactory.prototype = {
     /**
      * @override
      * @return {!WebInspector.Panel}
      */
     createPanel: function()
     {
         return WebInspector.NetworkPanel._instance();
     }
 }