cc: Pass SurfaceId by const ref in more places

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 15 matching lines @@
 class CompositorFrame;
 class Surface;
 class SurfaceFactoryClient;
 
 class CC_SURFACES_EXPORT SurfaceManager {
  public:
   SurfaceManager();
   ~SurfaceManager();
 
   void RegisterSurface(Surface* surface);
-  void DeregisterSurface(SurfaceId surface_id);
+  void DeregisterSurface(const SurfaceId& surface_id);
 
   // Destroy the Surface once a set of sequence numbers has been satisfied.
   void Destroy(std::unique_ptr<Surface> surface);
 
-  Surface* GetSurfaceForId(SurfaceId surface_id);
+  Surface* GetSurfaceForId(const SurfaceId& surface_id);
 
   void AddObserver(SurfaceDamageObserver* obs) {
     observer_list_.AddObserver(obs);
   }
 
   void RemoveObserver(SurfaceDamageObserver* obs) {
     observer_list_.RemoveObserver(obs);
   }
 
-  bool SurfaceModified(SurfaceId surface_id);
+  bool SurfaceModified(const SurfaceId& surface_id);
 
   // A frame for a surface satisfies a set of sequence numbers in a particular
   // id namespace.
   void DidSatisfySequences(uint32_t client_id, std::vector<uint32_t>* sequence);
 
   void RegisterSurfaceClientId(uint32_t client_id);
 
   // Invalidate a namespace that might still have associated sequences,
   // possibly because a renderer process has crashed.
   void InvalidateSurfaceClientId(uint32_t client_id);
@@ skipping 78 matching lines @@
   // that is implicitly using this namespace must be reachable by the
   // parent in the dag.
   std::unordered_map<BeginFrameSource*, uint32_t> registered_sources_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_SURFACE_MANAGER_H_