[Mojo Video Capture] Replace const scoped_refptr<T>& with scoped_refptr<T> and use std::move

content/browser/media/capture/aura_window_capture_machine.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_CAPTURE_MACHINE_H_
 #define CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_CAPTURE_MACHINE_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 85 matching lines @@
   bool ProcessCopyOutputResponse(scoped_refptr<media::VideoFrame> video_frame,
                                  base::TimeTicks event_time,
                                  const CaptureFrameCallback& capture_frame_cb,
                                  std::unique_ptr<cc::CopyOutputResult> result);
 
   // Renders the cursor if needed and then delivers the captured frame.
   static void CopyOutputFinishedForVideo(
       base::WeakPtr<AuraWindowCaptureMachine> machine,
       base::TimeTicks event_time,
       const CaptureFrameCallback& capture_frame_cb,
-      const scoped_refptr<media::VideoFrame>& target,
+      scoped_refptr<media::VideoFrame> target,
       std::unique_ptr<cc::SingleReleaseCallback> release_callback,
       bool result);
 
   // The window associated with the desktop.
   aura::Window* desktop_window_;
 
   // Whether screen capturing or window capture.
   bool screen_capture_;
 
   // Makes all the decisions about which frames to copy, and how.
@@ skipping 22 matching lines @@
   // immediately when InternalStop() is called to ensure that no more captured
   // frames will be delivered to the client.
   base::WeakPtrFactory<AuraWindowCaptureMachine> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AuraWindowCaptureMachine);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_CAPTURE_MACHINE_H_