Split surface id and simplify connecting to surfaces service

sky/compositor/surface_holder.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 SKY_COMPOSITOR_SURFACE_HOLDER_H_
 #define SKY_COMPOSITOR_SURFACE_HOLDER_H_
 
 #include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 25 matching lines @@
   explicit SurfaceHolder(Client* client, mojo::Shell* shell);
   ~SurfaceHolder() override;
 
   bool IsReadyForFrame() const;
 
   void SetSize(const gfx::Size& size);
   void SubmitFrame(mojo::FramePtr frame, const base::Closure& callback);
 
  private:
   // mojo::SurfaceClient
+  void SetIdNamespace(uint32_t id_namespace) override;
   void ReturnResources(
       mojo::Array<mojo::ReturnedResourcePtr> resources) override;
 
   void OnSurfaceConnectionCreated(mojo::SurfacePtr surface,
                                   uint32_t id_namespace);
 
   Client* client_;
   gfx::Size size_;
   scoped_ptr<SurfaceAllocator> surface_allocator_;
   mojo::SurfacesServicePtr surfaces_service_;
   mojo::SurfacePtr surface_;
   mojo::SurfaceIdPtr surface_id_;
 
   base::WeakPtrFactory<SurfaceHolder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceHolder);
 };
 
 }  // namespace sky
 
 #endif  // SKY_COMPOSITOR_SURFACE_HOLDER_H_