Use unique_ptr in more parts of mus code

components/mus/surfaces/surfaces_state.h

 // Copyright 2015 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 COMPONENTS_MUS_SURFACES_SURFACES_STATE_H_
 #define COMPONENTS_MUS_SURFACES_SURFACES_STATE_H_
 
 #include <stdint.h>
 
+#include <memory>

[danakj, 2016/04/16 02:03:55]

looks unused in this file

[rjkroege, 2016/04/16 02:17:28]

Good point. Removed.

+
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "cc/surfaces/surface_hittest.h"
 #include "cc/surfaces/surface_manager.h"
 
 namespace cc {
 class SurfaceHittest;
 class SurfaceManager;
 }  // namespace cc
 
 namespace mus {
 
@@ skipping 22 matching lines @@
   uint32_t next_id_namespace_;
   cc::SurfaceManager manager_;
   cc::SurfaceHittest hit_tester_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfacesState);
 };
 
 }  // namespace mus
 
 #endif  //  COMPONENTS_MUS_SURFACES_SURFACES_STATE_H_