ui: Cleanup class/struct forward declarations

ui/compositor/compositor.h

 // Copyright (c) 2012 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 UI_COMPOSITOR_COMPOSITOR_H_
 #define UI_COMPOSITOR_COMPOSITOR_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 15 matching lines @@
 #include "ui/compositor/compositor_export.h"
 #include "ui/compositor/compositor_observer.h"
 #include "ui/compositor/layer_animator_collection.h"
 #include "ui/gfx/color_space.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace base {
-class RunLoop;
 class SingleThreadTaskRunner;
 }
 
 namespace cc {
 class AnimationHost;
 class AnimationTimeline;
 class ContextProvider;
 class Layer;
 class LayerTreeDebugState;
 class LayerTreeHost;
 class RendererSettings;
-class SurfaceIdAllocator;
 class SurfaceManager;
 class TaskGraphRunner;
 }
 
 namespace gfx {
 class Rect;
 class ScrollOffset;
 class Size;
 }
 
 namespace gpu {
 class GpuMemoryBufferManager;
 }
 
 namespace ui {
 
 class Compositor;
 class CompositorVSyncManager;
 class LatencyInfo;
 class Layer;
 class Reflector;
-class Texture;
 
 #if defined(USE_AURA)
 class Window;
 #endif
 
 const int kCompositorLockTimeoutMs = 67;
 
 class COMPOSITOR_EXPORT ContextFactoryObserver {
  public:
   virtual ~ContextFactoryObserver() {}
@@ skipping 351 matching lines @@
   gfx::ColorSpace color_space_;
 
   base::WeakPtrFactory<Compositor> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Compositor);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_COMPOSITOR_H_