Fixing perf regression caused by refactoring full stack tests

webrtc/video/video_quality_test.cc

 /*
  *  Copyright (c) 2015 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 <stdio.h>
@@ skipping 765 matching lines @@
 
   SetupFullStack(params, &analyzer, &recv_transport);
   send_config_.encoding_time_observer = &analyzer;
   receive_configs_[0].renderer = &analyzer;
   for (auto& config : receive_configs_)
     config.pre_decode_callback = &analyzer;
 
   if (params.screenshare.enabled)
     SetupScreenshare(params);
 
-  CreateCapturer(params, &analyzer);
-
   CreateStreams();
   analyzer.input_ = send_stream_->Input();
   analyzer.send_stream_ = send_stream_;
 
+  CreateCapturer(params, &analyzer);
+
   send_stream_->Start();
   for (size_t i = 0; i < receive_streams_.size(); ++i)
     receive_streams_[i]->Start();
   capturer_->Start();
 
   analyzer.Wait();
 
   send_transport.StopSending();
   recv_transport.StopSending();
 
@@ skipping 33 matching lines @@
   transport.SetReceiver(call->Receiver());
 
   SetupFullStack(params, &transport, &transport);
   send_config_.local_renderer = local_preview.get();
   receive_configs_[0].renderer = loopback_video.get();
 
   if (params.screenshare.enabled)
     SetupScreenshare(params);
 
   send_stream_ = call->CreateVideoSendStream(send_config_, encoder_config_);
-  CreateCapturer(params, send_stream_->Input());
-
   VideoReceiveStream* receive_stream =
       call->CreateVideoReceiveStream(receive_configs_[0]);
+  CreateCapturer(params, send_stream_->Input());
 
   receive_stream->Start();
   send_stream_->Start();
   capturer_->Start();
 
   test::PressEnterToContinue();
 
   capturer_->Stop();
   send_stream_->Stop();
   receive_stream->Stop();
 
   call->DestroyVideoReceiveStream(receive_stream);
   call->DestroyVideoSendStream(send_stream_);
 
   transport.StopSending();
 }
 
 }  // namespace webrtc