services: Cleanup class/struct fwd declarations

services/ui/ws/server_window.h

 // Copyright 2014 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 SERVICES_UI_WS_SERVER_WINDOW_H_
 #define SERVICES_UI_WS_SERVER_WINDOW_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
 #include "services/ui/ws/ids.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/gfx/transform.h"
 #include "ui/platform_window/text_input_state.h"
 
-namespace gpu {
-class GpuMemoryBufferManager;
-}
-
 namespace ui {
 namespace ws {
 
 class ServerWindowDelegate;
 class ServerWindowObserver;
 class ServerWindowCompositorFrameSinkManager;
 
 // Server side representation of a window. Delegate is informed of interesting
 // events.
 //
@@ skipping 223 matching lines @@
 
   base::ObserverList<ServerWindowObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ServerWindow);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_SERVER_WINDOW_H_