Movable support for VideoReceiveStream::Config and avoid copies

webrtc/video/end_to_end_tests.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <algorithm>
@@ skipping 1196 matching lines @@
       receive_config.rtp.local_ssrc = test::CallTest::kReceiverLocalVideoSsrc;
       VideoReceiveStream::Decoder decoder =
           test::CreateMatchingDecoder(send_config.encoder_settings);
       allocated_decoders.push_back(
           std::unique_ptr<VideoDecoder>(decoder.decoder));
       receive_config.decoders.push_back(decoder);
 
       UpdateReceiveConfig(i, &receive_config);
 
       receive_streams[i] =
-          receiver_call->CreateVideoReceiveStream(receive_config);
+          receiver_call->CreateVideoReceiveStream(std::move(receive_config));
       receive_streams[i]->Start();
 
       frame_generators[i] = test::FrameGeneratorCapturer::Create(
           send_streams[i]->Input(), width, height, 30,
           Clock::GetRealTimeClock());
       frame_generators[i]->Start();
     }
 
     Wait();
 
@@ skipping 2312 matching lines @@
    private:
     bool video_observed_;
     bool audio_observed_;
     SequenceNumberUnwrapper unwrapper_;
     std::set<int64_t> received_packet_ids_;
   } test;
 
   RunBaseTest(&test);
 }
 }  // namespace webrtc