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

content/browser/renderer_host/media/video_capture_device_client_unittest.cc

 // 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.
 
 #include "media/capture/video/video_capture_device_client.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 26 matching lines @@
       : VideoCaptureController(max_buffers) {}
   ~MockVideoCaptureController() override {}
 
   MOCK_METHOD1(MockOnIncomingCapturedVideoFrame, void(const gfx::Size&));
   MOCK_METHOD0(OnError, void());
   MOCK_METHOD1(OnLog, void(const std::string& message));
   MOCK_METHOD1(OnBufferDestroyed, void(int buffer_id_to_drop));
 
   void OnIncomingCapturedVideoFrame(
       std::unique_ptr<media::VideoCaptureDevice::Client::Buffer> buffer,
-      const scoped_refptr<media::VideoFrame>& frame) override {
+      scoped_refptr<media::VideoFrame> frame) override {
     MockOnIncomingCapturedVideoFrame(frame->coded_size());
   }
 };
 
 // Note that this test does not exercise the class VideoCaptureDeviceClient
 // in isolation. The "unit under test" is an instance of
 // VideoCaptureDeviceClient with some context that is specific to
 // renderer_host/media, and therefore this test must live here and not in
 // media/capture/video.
 class VideoCaptureDeviceClientTest : public ::testing::Test {
@@ skipping 172 matching lines @@
 
     EXPECT_EQ(coded_size.width(), size_and_rotation.output_resolution.width());
     EXPECT_EQ(coded_size.height(),
               size_and_rotation.output_resolution.height());
 
     Mock::VerifyAndClearExpectations(controller_.get());
   }
 }
 
 }  // namespace content