Get rid of the relative paths in command_buffer client/common

gpu/command_buffer/common/command_buffer.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.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_COMMAND_BUFFER_H_
 #define GPU_COMMAND_BUFFER_COMMON_COMMAND_BUFFER_H_
 
-#include "../../gpu_export.h"
-#include "../common/buffer.h"
-#include "../common/constants.h"
+#include "gpu/command_buffer/common/buffer.h"
+#include "gpu/command_buffer/common/constants.h"
+#include "gpu/gpu_export.h"
 
 namespace base {
 class SharedMemory;
 }
 
 namespace gpu {
 
 // Common interface for CommandBuffer implementations.
 class GPU_EXPORT CommandBuffer {
  public:
@@ skipping 124 matching lines @@
   // be used for cross-context synchronization.
   virtual uint32 InsertSyncPoint() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CommandBuffer);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_COMMAND_BUFFER_H_