Change VideoSourceInterface::needs_denoising() to return rtc::Optional<bool>

webrtc/api/rtpsender.cc

 /*
  *  Copyright 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 314 matching lines @@
   }
   stopped_ = true;
 }
 
 void VideoRtpSender::SetVideoSend() {
   RTC_DCHECK(!stopped_ && can_send_track());
   cricket::VideoOptions options;
   VideoTrackSourceInterface* source = track_->GetSource();
   if (source) {
     options.is_screencast = rtc::Optional<bool>(source->is_screencast());
-    options.video_noise_reduction =
-        rtc::Optional<bool>(source->needs_denoising());
+    options.video_noise_reduction = source->needs_denoising();
   }
   provider_->SetVideoSend(ssrc_, track_->enabled(), &options);
 }
 
 RtpParameters VideoRtpSender::GetParameters() const {
   return provider_->GetVideoRtpParameters(ssrc_);
 }
 
 bool VideoRtpSender::SetParameters(const RtpParameters& parameters) {
   return provider_->SetVideoRtpParameters(ssrc_, parameters);
 }
 
 }  // namespace webrtc