DevTools: Fix presubmits failing on InspectorFrontendHostAPI

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

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 /** @interface */
-window.InspectorFrontendHostAPI = function()
+function InspectorFrontendHostAPI()
 {
 }
-
+window.InspectorFrontendHostAPI = InspectorFrontendHostAPI;
 /** @typedef
 {{
     type: string,
     id: (number|undefined),
     label: (string|undefined),
     enabled: (boolean|undefined),
     checked: (boolean|undefined),
     subItems: (!Array.<!InspectorFrontendHostAPI.ContextMenuDescriptor>|undefined)
 }} */
 InspectorFrontendHostAPI.ContextMenuDescriptor;
@@ skipping 267 matching lines @@
      */
     isUnderTest: function() { },
 
     readyForTest: function() { },
 
     /**
      * @return {boolean}
      */
     isHostedMode: function() { }
 }