DevTools: brush up audits 2 launcher UI, allow multiple audit runs, introduce landing page.

third_party/WebKit/Source/devtools/front_end/sdk/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 359 matching lines @@
       this._pendingReloadOptions = [bypassCache, scriptToEvaluateOnLoad];
       return;
     }
     this._pendingReloadOptions = null;
     this.dispatchEventToListeners(SDK.ResourceTreeModel.Events.WillReloadPage);
     this._agent.reload(bypassCache, scriptToEvaluateOnLoad);
   }
 
   /**
    * @param {string} url
+   * @return {!Promise}
    */
   navigate(url) {
-    this._agent.navigate(url, undefined, (error, frameId) => undefined);
+    return this._agent.navigate(url, undefined, (error, frameId) => undefined);
   }
 
   /**
    * @return {!Promise<?{currentIndex: number, entries: !Protocol.Page.NavigationEntry}>}
    */
   navigationHistory() {
     return this._agent.getNavigationHistory((error, currentIndex, entries) => {
       if (error)
         return null;
       return {currentIndex: currentIndex, entries: entries};
@@ skipping 490 matching lines @@
     this._resourceTreeModel.dispatchEventToListeners(SDK.ResourceTreeModel.Events.InterstitialHidden);
   }
 
   /**
    * @override
    */
   navigationRequested() {
     // Frontend is not interested in when navigations are requested.
   }
 };