cc: Cleanup class/struct forward declarations

cc/surfaces/surface.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 CC_SURFACES_SURFACE_H_
 #define CC_SURFACES_SURFACE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 13 matching lines @@
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "cc/surfaces/surfaces_export.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace ui {
 class LatencyInfo;
 }
 
 namespace cc {
+
+class BeginFrameSource;
 class CompositorFrame;
 class CopyOutputRequest;
-class SurfaceManager;
 class SurfaceFactory;
-class SurfaceResourceHolder;
 
 class CC_SURFACES_EXPORT Surface {
  public:
   using DrawCallback = SurfaceFactory::DrawCallback;
 
   Surface(const SurfaceId& id, base::WeakPtr<SurfaceFactory> factory);
   ~Surface();
 
   const SurfaceId& surface_id() const { return surface_id_; }
   const SurfaceId& previous_frame_surface_id() const {
@@ skipping 63 matching lines @@
   std::vector<SurfaceId> referenced_surfaces_;
 
   DrawCallback draw_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(Surface);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_SURFACE_H_