Add missing tracing to RtpSender objects.

webrtc/video/video_send_stream.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.
  */
 
@@ skipping 337 matching lines @@
       vie_receiver_->GetRemoteSsrc());
 }
 
 VideoCaptureInput* VideoSendStream::Input() {
   return &input_;
 }
 
 void VideoSendStream::Start() {
   if (payload_router_.active())
     return;
+  TRACE_EVENT_INSTANT0("webrtc", "VideoSendStream::Start");
   vie_encoder_.Pause();
   payload_router_.set_active(true);
   // Was not already started, trigger a keyframe.
   vie_encoder_.SendKeyFrame();
   vie_encoder_.Restart();
   vie_receiver_->StartReceive();
 }
 
 void VideoSendStream::Stop() {
   if (!payload_router_.active())
     return;
+  TRACE_EVENT_INSTANT0("webrtc", "VideoSendStream::Stop");
   // TODO(pbos): Make sure the encoder stops here.
   payload_router_.set_active(false);
   vie_receiver_->StopReceive();
 }
 
 bool VideoSendStream::EncoderThreadFunction(void* obj) {
   static_cast<VideoSendStream*>(obj)->EncoderProcess();
   // We're done, return false to abort.
   return false;
 }
@@ skipping 250 matching lines @@
 }
 
 void VideoSendStream::OnBitrateUpdated(uint32_t bitrate_bps,
                                        uint8_t fraction_loss,
                                        int64_t rtt) {
   vie_encoder_.OnBitrateUpdated(bitrate_bps, fraction_loss, rtt);
 }
 
 }  // namespace internal
 }  // namespace webrtc