DevTools: Do not auto-reveal resuources with empty urls.

Source/devtools/front_end/sources/NavigatorView.js

 /*
  * Copyright (C) 2012 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
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 506 matching lines @@
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     _inspectedURLChanged: function(event)
     {
        var nodes = this._uiSourceCodeNodes.values();
        for (var i = 0; i < nodes.length; ++i) {
            var uiSourceCode = nodes[i].uiSourceCode();
-           if (uiSourceCode.url === WebInspector.resourceTreeModel.inspectedPageURL())
+           if (WebInspector.resourceTreeModel.inspectedPageURL() && uiSourceCode.url === WebInspector.resourceTreeModel.inspectedPageURL())
               this.revealUISourceCode(uiSourceCode, true);
        }
     },
 
     /**
      * @param {!WebInspector.UISourceCode} uiSourceCode
      */
     _addUISourceCode: function(uiSourceCode)
     {
         WebInspector.NavigatorView.prototype._addUISourceCode.call(this, uiSourceCode);
@@ skipping 876 matching lines @@
 
     willRemoveChild: function(node)
     {
         if (node._isMerged || !this.isPopulated())
             return;
         this._treeElement.removeChild(node._treeElement);
     },
 
     __proto__: WebInspector.NavigatorTreeNode.prototype
 }