Move surface reference code to CompositorFrameSinkSupport.

cc/surfaces/surface_manager.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_MANAGER_H_
 #define CC_SURFACES_SURFACE_MANAGER_H_
 
 #include <stdint.h>
 
 #include <list>
@@ skipping 138 matching lines @@
   void AddSurfaceReferences(const std::vector<SurfaceReference>& references);
 
   // Removes all surface references in |references| then runs garbage
   // collection to delete unreachable surfaces.
   void RemoveSurfaceReferences(const std::vector<SurfaceReference>& references);
 
   scoped_refptr<SurfaceReferenceFactory> reference_factory() {
     return reference_factory_;
   }
 
+  bool using_surface_references() const {
+    return lifetime_type_ == LifetimeType::REFERENCES;
+  }
+
  private:
   friend class SurfaceManagerRefTest;
 
   using SurfaceIdSet = std::unordered_set<SurfaceId, SurfaceIdHash>;
 
   void RecursivelyAttachBeginFrameSource(const FrameSinkId& frame_sink_id,
                                          BeginFrameSource* source);
   void RecursivelyDetachBeginFrameSource(const FrameSinkId& frame_sink_id,
                                          BeginFrameSource* source);
 
@@ skipping 104 matching lines @@
   std::unique_ptr<SurfaceDependencyTracker> dependency_tracker_;
 
   base::WeakPtrFactory<SurfaceManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_SURFACE_MANAGER_H_