Extract UI dependencies from ExtensionHost, part 3

chrome/browser/ui/android/extensions/extension_view_android.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 CHROME_BROWSER_UI_ANDROID_EXTENSIONS_EXTENSION_VIEW_ANDROID_H_
 #define CHROME_BROWSER_UI_ANDROID_EXTENSIONS_EXTENSION_VIEW_ANDROID_H_
 
 #include "base/basictypes.h"
+#include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 
 class Browser;
 
+// Android does not support extensions, so this is just a stub.
 class ExtensionViewAndroid {
  public:
   Browser* browser() const { return NULL; }
+  gfx::NativeView native_view() const { return NULL; }
 
   void ResizeDueToAutoResize(const gfx::Size& new_size);
   void RenderViewCreated();
 
  private:
   ExtensionViewAndroid() { }
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionViewAndroid);
 };
 
 #endif  // CHROME_BROWSER_UI_ANDROID_EXTENSIONS_EXTENSION_VIEW_ANDROID_H_