DevTools: Fix presubmits failing on InspectorFrontendHostAPI

third_party/WebKit/Source/devtools/front_end/host/InspectorFrontendHost.js

 /*
  * Copyright (C) 2009 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 431 matching lines @@
      */
     isHostedMode: function()
     {
         return true;
     }
 };
 
 /**
  * @type {!InspectorFrontendHostAPI}
  */
-window.InspectorFrontendHost = window.InspectorFrontendHost || null;
-
+var InspectorFrontendHost = window.InspectorFrontendHost || null;
+window.InspectorFrontendHost = InspectorFrontendHost;
 (function(){
 
     function initializeInspectorFrontendHost()
     {
         if (!InspectorFrontendHost) {
             // Instantiate stub for web-hosted mode if necessary.
-            InspectorFrontendHost = new WebInspector.InspectorFrontendHostStub();
+            window.InspectorFrontendHost = InspectorFrontendHost = new WebInspector.InspectorFrontendHostStub();
         } else {
             // Otherwise add stubs for missing methods that are declared in the interface.
             var proto = WebInspector.InspectorFrontendHostStub.prototype;
             for (var name in proto) {
                 var value = proto[name];
                 if (typeof value !== "function" || InspectorFrontendHost[name])
                     continue;
 
                 InspectorFrontendHost[name] = stub.bind(null, name);
             }
@@ skipping 77 matching lines @@
     // so the host instance should not initialized there.
     initializeInspectorFrontendHost();
     window.InspectorFrontendAPI = new InspectorFrontendAPIImpl();
     WebInspector.setLocalizationPlatform(InspectorFrontendHost.platform());
 })();
 
 /**
  * @type {!WebInspector.EventTarget}
  */
 InspectorFrontendHost.events;