Implement pepper flash fullscreen on Mac

ui/base/cocoa/underlay_opengl_hosting_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_
+#ifndef UI_BASE_COCOA_UNDERLAY_OPENGL_HOSTING_WINDOW_H_
+#define UI_BASE_COCOA_UNDERLAY_OPENGL_HOSTING_WINDOW_H_
 #pragma once
 
 #import <Cocoa/Cocoa.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 {
+// Common base class for windows that host a OpenGL surface that renders under
+// the window. Contains methods relating to hole punching so that the OpenGL
+// surface is visible through the window.
+@interface UnderlayOpenGLHostingWindow : NSWindow {
  @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;
 
 @end
 
-#endif  // CHROME_BROWSER_UI_COCOA_CHROME_BROWSER_WINDOW_H_
+#endif  // UI_BASE_COCOA_UNDERLAY_OPENGL_HOSTING_WINDOW_H_