blimp: Cleanup class/struct forward declarations

blimp/client/core/compositor/blimp_compositor.h

 // Copyright 2015 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 BLIMP_CLIENT_CORE_COMPOSITOR_BLIMP_COMPOSITOR_H_
 #define BLIMP_CLIENT_CORE_COMPOSITOR_BLIMP_COMPOSITOR_H_
 
 #include <content/public/renderer/remote_proto_channel.h>
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread_checker.h"
 #include "blimp/client/core/compositor/blimp_compositor_frame_sink_proxy.h"
 #include "blimp/client/public/compositor/compositor_dependencies.h"
 #include "cc/blimp/compositor_state_deserializer.h"
 #include "cc/surfaces/surface_factory_client.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_settings.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 
-namespace base {
-class SingleThreadTaskRunner;
-class Thread;
-}  // namespace base
-
 namespace cc {
 class AnimationHost;
 class InputHandler;
 
 namespace proto {
 class CompositorMessage;
 }  // namespace proto
 
 class ContextProvider;
 class CopyOutputRequest;
 class Layer;
 class LayerTreeHostInProcess;
-class LayerTreeSettings;
-class LocalFrameid;
-class Surface;
 class SurfaceFactory;
 class SurfaceIdAllocator;
 }  // namespace cc
 
 namespace blimp {
-class BlimpMessage;
 
 namespace client {
 
 class BlimpCompositorDependencies;
 
 // The BlimpCompositorClient provides the BlimpCompositor with the necessary
 // dependencies for cc::LayerTreeHost owned by this compositor and for
 // communicating the compositor and input messages to the corresponding
 // render widget of this compositor on the engine.
 class BlimpCompositorClient {
@@ skipping 181 matching lines @@
 
   base::WeakPtrFactory<BlimpCompositor> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpCompositor);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_CORE_COMPOSITOR_BLIMP_COMPOSITOR_H_