Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h

Index: chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h
diff --git a/chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h b/chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h
index 7d32d1b8bb8188625d2faff1d5b0f830d177d5b9..343a45cd0a63b303427db4b8434cb08b4f199508 100644
--- a/chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h
+++ b/chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h
@@ -5,7 +5,7 @@
 #ifndef CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECRYPT_CONFIG_MARSHALLER_H_
 #define CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECRYPT_CONFIG_MARSHALLER_H_
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
 
 namespace media {
 class DecryptConfig;
@@ -22,7 +22,7 @@ class DecryptConfigMarshaller {
   static void Write(const CastDecryptConfig& config, MediaMessage* msg);
 
   // Returns a DecryptConfig from its serialized structure.
-  static scoped_ptr<CastDecryptConfig> Read(MediaMessage* msg);
+  static std::unique_ptr<CastDecryptConfig> Read(MediaMessage* msg);
 };
 
 }  // namespace media