Move creation and ownership of HostZoomMap to content instead of having every embedder do this.

content/browser/mock_resource_context.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_BROWSER_MOCK_RESOURCE_CONTEXT_H_
 #define CONTENT_BROWSER_MOCK_RESOURCE_CONTEXT_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 16 matching lines @@
     media_observer_ = observer;
   }
   void set_media_stream_manager(media_stream::MediaStreamManager* manager) {
     media_stream_manager_ = manager;
   }
   void set_audio_manager(AudioManager* manager) { audio_manager_ = manager; }
 
   // ResourceContext implementation:
   virtual net::HostResolver* GetHostResolver() OVERRIDE;
   virtual net::URLRequestContext* GetRequestContext() OVERRIDE;
-  virtual HostZoomMap* GetHostZoomMap() OVERRIDE;
   virtual MediaObserver* GetMediaObserver() OVERRIDE;
   virtual media_stream::MediaStreamManager* GetMediaStreamManager() OVERRIDE;
   virtual AudioManager* GetAudioManager() OVERRIDE;
 
  private:
   scoped_refptr<net::URLRequestContext> test_request_context_;
   MediaObserver* media_observer_;
   media_stream::MediaStreamManager* media_stream_manager_;
   AudioManager* audio_manager_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MOCK_RESOURCE_CONTEXT_H_