Fix accelerated plugins rendering in Panels on Mac.

chrome/browser/ui/panels/panel_window_controller_cocoa.h

 // 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_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_
 
 // A class acting as the Objective-C controller for the Panel window
 // object. Handles interactions between Cocoa and the cross-platform
 // code. Each window has a single titlebar and is managed/owned by Panel.
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/cocoa_protocols.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #import "chrome/browser/ui/cocoa/browser_command_executor.h"
+#import "chrome/browser/ui/cocoa/chrome_browser_window.h"
 #import "chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.h"
-#import "chrome/browser/ui/cocoa/themed_browser_window.h"
 #import "chrome/browser/ui/cocoa/themed_window.h"
 #import "chrome/browser/ui/cocoa/tracking_area.h"
 
 @class FindBarCocoaController;
 class PanelBrowserWindowCocoa;
 @class PanelTitlebarViewCocoa;
 
-@interface PanelWindowCocoaImpl : ThemedBrowserWindow {
+@interface PanelWindowCocoaImpl : ChromeBrowserWindow {
 }
 // The panels cannot be reduced to 3-px windows on the edge of the screen
 // active area (above Dock). Default constraining logic makes at least a height
 // of the titlebar visible, so the user could still grab it. We do 'restore'
 // differently, and minimize panels to 3 px. Hence the need to override the
 // constraining logic.
 - (NSRect)constrainFrameRect:(NSRect)frameRect toScreen:(NSScreen *)screen;
 
 // Prevent panel window from becoming key - for example when it is minimized.
 - (BOOL)canBecomeKeyWindow;
@@ skipping 86 matching lines @@
 // Removes the Key status from the panel to some other window.
 - (void)deactivate;
 
 // Helper for NSWindow, returns NO for minimized panels in some cases, so they
 // are not un-minimized when another panel is minimized.
 - (BOOL)canBecomeKeyWindow;
 
 @end  // @interface PanelWindowController
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_