Implement pepper flash fullscreen on Mac

chrome/browser/ui/cocoa/chrome_browser_window.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_COCOA_CHROME_BROWSER_WINDOW_H_
 #define CHROME_BROWSER_UI_COCOA_CHROME_BROWSER_WINDOW_H_
 #pragma once
 
-#import <Cocoa/Cocoa.h>
-
-#import "content/public/browser/accelerated_window_interface.h"
 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
 
-// Common base class for chrome browser windows.  Contains methods relating to
-// hole punching that are shared between framed and fullscreen windows.
-@interface ChromeBrowserWindow
-    : ChromeEventProcessingWindow<UnderlayableSurface> {
- @private
-  int underlaySurfaceCount_;
-}
-
-// Informs the window that an underlay surface has been added/removed. The
-// window is non-opaque while underlay surfaces are present.
-- (void)underlaySurfaceAdded;
-- (void)underlaySurfaceRemoved;
-
+// Common base class for chrome browser windows.
+@interface ChromeBrowserWindow : ChromeEventProcessingWindow
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_CHROME_BROWSER_WINDOW_H_