services: Cleanup class/struct fwd declarations

services/ui/public/cpp/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_PUBLIC_CPP_WINDOW_H_
 #define SERVICES_UI_PUBLIC_CPP_WINDOW_H_
 
 #include <stdint.h>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "services/service_manager/public/interfaces/interface_provider.mojom.h"
 #include "services/ui/common/types.h"
 #include "services/ui/public/cpp/surface_id_handler.h"
 #include "services/ui/public/cpp/window_compositor_frame_sink.h"
 #include "services/ui/public/interfaces/mus_constants.mojom.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/rect.h"
 
-namespace gfx {
-class Size;
-}
-
 namespace gpu {
 class GpuMemoryBufferManager;
 }
 
 namespace ui {
 
 class InputEventHandler;
-class ServiceProviderImpl;
 class SurfaceIdHandler;
 class WindowCompositorFrameSinkBinding;
 class WindowObserver;
-class WindowSurface;
 class WindowDropTarget;
 class WindowTreeClient;
 class WindowTreeClientPrivate;
 
 namespace {
 class OrderChangedNotifier;
 }
 
 // Defined in window_property.h (which we do not include)
 template <typename T>
@@ skipping 362 matching lines @@
   std::map<const void*, Value> prop_map_;
 
   std::unique_ptr<SurfaceInfo> surface_info_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_PUBLIC_CPP_WINDOW_H_