Implement basic theming for panel titlebars.

chrome/browser/ui/cocoa/chrome_browser_window.h

 // Copyright (c) 2010 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>
 
-#include "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
+#include "chrome/browser/ui/cocoa/themed_browser_window.h"
 
 // Common base class for chrome browser windows.  Contains methods relating to
-// theming and hole punching that are shared between framed and fullscreen
-// windows.
-@interface ChromeBrowserWindow : ChromeEventProcessingWindow {
+// hole punching that are shared between framed and fullscreen windows.
+@interface ChromeBrowserWindow : ThemedBrowserWindow {
  @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_