Convert //media/cast from scoped_ptr to std::unique_ptr

media/cast/cast_config.h

Index: media/cast/cast_config.h
diff --git a/media/cast/cast_config.h b/media/cast/cast_config.h
index 465f924e72c7b4b2c650d941ba6d902185d76134..85ec3b917648bd2e3081f7fec74717ef2402bcde 100644
--- a/media/cast/cast_config.h
+++ b/media/cast/cast_config.h
@@ -212,11 +212,11 @@ struct FrameReceiverConfig {
 
 // TODO(miu): Remove the CreateVEA callbacks.  http://crbug.com/454029
 typedef base::Callback<void(scoped_refptr<base::SingleThreadTaskRunner>,
-                            scoped_ptr<media::VideoEncodeAccelerator>)>
+                            std::unique_ptr<media::VideoEncodeAccelerator>)>
     ReceiveVideoEncodeAcceleratorCallback;
 typedef base::Callback<void(const ReceiveVideoEncodeAcceleratorCallback&)>
     CreateVideoEncodeAcceleratorCallback;
-typedef base::Callback<void(scoped_ptr<base::SharedMemory>)>
+typedef base::Callback<void(std::unique_ptr<base::SharedMemory>)>
     ReceiveVideoEncodeMemoryCallback;
 typedef base::Callback<void(size_t size,
                             const ReceiveVideoEncodeMemoryCallback&)>