Updated structures and functions for setting the max bitrate limit to take rtc::Optional<int>

webrtc/video/video_loopback.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.
  */
 
@@ skipping 190 matching lines @@
   pipe_config.loss_percent = flags::LossPercent();
   pipe_config.link_capacity_kbps = flags::LinkCapacityKbps();
   pipe_config.queue_length_packets = flags::QueueSize();
   pipe_config.queue_delay_ms = flags::AvgPropagationDelayMs();
   pipe_config.delay_standard_deviation_ms = flags::StdPropagationDelayMs();
   pipe_config.allow_reordering = flags::FLAGS_allow_reordering;
 
   Call::Config::BitrateConfig call_bitrate_config;
   call_bitrate_config.min_bitrate_bps = flags::MinBitrateKbps() * 1000;
   call_bitrate_config.start_bitrate_bps = flags::StartBitrateKbps() * 1000;
-  call_bitrate_config.max_bitrate_bps = flags::MaxBitrateKbps() * 1000;
+  call_bitrate_config.max_bitrate_bps =
+      rtc::Optional<int>(flags::MaxBitrateKbps() * 1000);
 
   VideoQualityTest::Params params{
       {flags::Width(), flags::Height(), flags::Fps(),
        flags::MinBitrateKbps() * 1000, flags::TargetBitrateKbps() * 1000,
        flags::MaxBitrateKbps() * 1000, flags::Codec(),
        flags::NumTemporalLayers(), flags::SelectedTL(),
        0,  // No min transmit bitrate.
        call_bitrate_config, flags::FLAGS_send_side_bwe},
       {flags::Clip()},
       {},  // Screenshare specific.
@@ skipping 22 matching lines @@
 }  // namespace webrtc
 
 int main(int argc, char* argv[]) {
   ::testing::InitGoogleTest(&argc, argv);
   google::ParseCommandLineFlags(&argc, &argv, true);
   webrtc::test::InitFieldTrialsFromString(
       webrtc::flags::FLAGS_force_fieldtrials);
   webrtc::test::RunTest(webrtc::Loopback);
   return 0;
 }