convert //gpu to std::unique_ptr

gpu/command_buffer/service/command_buffer_service.h

Index: gpu/command_buffer/service/command_buffer_service.h
diff --git a/gpu/command_buffer/service/command_buffer_service.h b/gpu/command_buffer/service/command_buffer_service.h
index 560bf163326fcfcdfcfc3ba98e61bd39b3cd0bf4..10a179b312fd372b6727b81795d83a300fba1d14 100644
--- a/gpu/command_buffer/service/command_buffer_service.h
+++ b/gpu/command_buffer/service/command_buffer_service.h
@@ -85,19 +85,20 @@ class GPU_EXPORT CommandBufferService : public CommandBufferServiceBase {
   virtual void SetParseErrorCallback(const base::Closure& callback);
 
   // Setup the shared memory that shared state should be copied into.
-  void SetSharedStateBuffer(scoped_ptr<BufferBacking> shared_state_buffer);
+  void SetSharedStateBuffer(std::unique_ptr<BufferBacking> shared_state_buffer);
 
   // Copy the current state into the shared state transfer buffer.
   void UpdateState();
 
   // Registers an existing shared memory object and get an ID that can be used
   // to identify it in the command buffer.
-  bool RegisterTransferBuffer(int32_t id, scoped_ptr<BufferBacking> buffer);
+  bool RegisterTransferBuffer(int32_t id,
+                              std::unique_ptr<BufferBacking> buffer);
 
  private:
   int32_t ring_buffer_id_;
   scoped_refptr<Buffer> ring_buffer_;
-  scoped_ptr<BufferBacking> shared_state_buffer_;
+  std::unique_ptr<BufferBacking> shared_state_buffer_;
   CommandBufferSharedState* shared_state_;
   int32_t num_entries_;
   int32_t get_offset_;