Fix accelerated plugins rendering in Panels on Mac.

chrome/browser/ui/cocoa/themed_browser_window.h

Index: chrome/browser/ui/cocoa/themed_browser_window.h
diff --git a/chrome/browser/ui/cocoa/themed_browser_window.h b/chrome/browser/ui/cocoa/themed_browser_window.h
deleted file mode 100644
index a413797880107d63be1c69755542727d87314080..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/cocoa/themed_browser_window.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011 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_THEMED_BROWSER_WINDOW_H_
-#define CHROME_BROWSER_UI_COCOA_THEMED_BROWSER_WINDOW_H_
-#pragma once
-
-#import <Cocoa/Cocoa.h>
-
-#include "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
-
-// Common base class for themed browser windows.
-@interface ThemedBrowserWindow : ChromeEventProcessingWindow {
-}
-
-@end
-
-#endif  // CHROME_BROWSER_UI_COCOA_CHROME_BROWSER_WINDOW_H_