Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.h

Index: chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.h
diff --git a/chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.h b/chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.h
index bd5dbfe9b11dce157e9e351d726019d68e3d64ee..9abc7b63655a50bb5fb0dccea537622abbe74cc0 100644
--- a/chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.h
+++ b/chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.h
@@ -5,8 +5,9 @@
 #ifndef CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECODER_BUFFER_BASE_MARSHALLER_H_
 #define CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECODER_BUFFER_BASE_MARSHALLER_H_
 
+#include <memory>
+
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 
 namespace chromecast {
 namespace media {
@@ -20,7 +21,8 @@ class DecoderBufferBaseMarshaller {
       const scoped_refptr<DecoderBufferBase>& buffer, MediaMessage* msg);
 
   // Returns a decoder buffer from its serialized structure.
-  static scoped_refptr<DecoderBufferBase> Read(scoped_ptr<MediaMessage> msg);
+  static scoped_refptr<DecoderBufferBase> Read(
+      std::unique_ptr<MediaMessage> msg);
 };
 
 }  // namespace media