Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/browser/media/cast_mojo_media_application.h

Index: chromecast/browser/media/cast_mojo_media_application.h
diff --git a/chromecast/browser/media/cast_mojo_media_application.h b/chromecast/browser/media/cast_mojo_media_application.h
index a3bc9937216a176764ecdb0b8b15650962699aaa..393925c1b9e75a03e670f38f791048f3afe3ccef 100644
--- a/chromecast/browser/media/cast_mojo_media_application.h
+++ b/chromecast/browser/media/cast_mojo_media_application.h
@@ -5,8 +5,9 @@
 #ifndef CHROMECAST_BROWSER_MEDIA_CAST_MOJO_MEDIA_APPLICATION_H_
 #define CHROMECAST_BROWSER_MEDIA_CAST_MOJO_MEDIA_APPLICATION_H_
 
+#include <memory>
+
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "media/mojo/interfaces/service_factory.mojom.h"
 #include "mojo/shell/public/cpp/interface_factory.h"
 #include "mojo/shell/public/cpp/message_loop_ref.h"
@@ -30,7 +31,7 @@ class CastMojoMediaApplication
       public mojo::InterfaceFactory<::media::interfaces::ServiceFactory> {
  public:
   CastMojoMediaApplication(
-      scoped_ptr<CastMojoMediaClient> mojo_media_client,
+      std::unique_ptr<CastMojoMediaClient> mojo_media_client,
       scoped_refptr<base::SingleThreadTaskRunner> media_task_runner);
   ~CastMojoMediaApplication() final;
 
@@ -46,7 +47,7 @@ class CastMojoMediaApplication
               mojo::InterfaceRequest<::media::interfaces::ServiceFactory>
                   request) final;
 
-  scoped_ptr<CastMojoMediaClient> mojo_media_client_;
+  std::unique_ptr<CastMojoMediaClient> mojo_media_client_;
   scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
   scoped_refptr<::media::MediaLog> media_log_;
   mojo::MessageLoopRefFactory ref_factory_;