convert //gpu to std::unique_ptr

gpu/command_buffer/service/context_state.h

 // Copyright (c) 2012 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.
 
 // This file contains the ContextState class.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_H_
 #define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_H_
 
+#include <memory>
 #include <vector>
+
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "gpu/command_buffer/service/sampler_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/command_buffer/service/valuebuffer_manager.h"
+#include "gpu/command_buffer/service/vertex_array_manager.h"
 #include "gpu/command_buffer/service/vertex_attrib_manager.h"
-#include "gpu/command_buffer/service/vertex_array_manager.h"
 #include "gpu/gpu_export.h"
 
 namespace gpu {
 namespace gles2 {
 
 class Buffer;
 class ErrorState;
 class ErrorStateClient;
 class FeatureInfo;
 class Framebuffer;
@@ skipping 272 matching lines @@
   // If a buffer object is bound to PIXEL_PACK_BUFFER, set all pack parameters
   // user values; otherwise, set them to 0.
   void UpdatePackParameters() const;
   // If a buffer object is bound to PIXEL_UNPACK_BUFFER, set all unpack
   // parameters user values; otherwise, set them to 0.
   void UpdateUnpackParameters() const;
 
   void InitStateManual(const ContextState* prev_state) const;
 
   FeatureInfo* feature_info_;
-  scoped_ptr<ErrorState> error_state_;
+  std::unique_ptr<ErrorState> error_state_;
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_H_