convert //gpu to std::unique_ptr

media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h

Index: media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
diff --git a/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h b/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
index ec9a00c5f890f67549d75470ec73c36892854000..ca16f1744f217ffe36bc61d91427bc312c1cbba4 100644
--- a/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
+++ b/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
@@ -7,6 +7,8 @@
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
@@ -66,7 +68,7 @@ class GpuJpegDecodeAcceleratorHost : public JpegDecodeAccelerator,
   // GPU IO task runner.
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
-  scoped_ptr<Receiver> receiver_;
+  std::unique_ptr<Receiver> receiver_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuJpegDecodeAcceleratorHost);
 };