Adding more detail to MessageQueue::Dispatch logging.

webrtc/media/engine/webrtcvideocapturer.cc

 /*
  *  Copyright (c) 2011 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 341 matching lines @@
   if (start_thread_->IsCurrent()) {
     SignalFrameCapturedOnStartThread(sample);
   } else {
     // This currently happens on with at least VideoCaptureModuleV4L2 and
     // possibly other implementations of WebRTC's VideoCaptureModule.
     // In order to maintain the threading contract with the upper layers and
     // consistency with other capturers such as in Chrome, we need to do a
     // thread hop.
     // Note that Stop() can cause the async invoke call to be cancelled.
     async_invoker_->AsyncInvoke<void>(
-        start_thread_,
+        RTC_FROM_HERE, start_thread_,
         // Note that Bind captures by value, so there's an intermediate copy
         // of sample.
         rtc::Bind(&WebRtcVideoCapturer::SignalFrameCapturedOnStartThread, this,
                   sample));
   }
 }
 
 void WebRtcVideoCapturer::OnCaptureDelayChanged(const int32_t id,
                                                 const int32_t delay) {
   LOG(LS_INFO) << "Capture delay changed to " << delay << " ms";
@@ skipping 38 matching lines @@
   pixel_width = 1;
   pixel_height = 1;
   // Convert units from VideoFrame RenderTimeMs to CapturedFrame (nanoseconds).
   time_stamp = sample.render_time_ms() * rtc::kNumNanosecsPerMillisec;
   data_size = rtc::checked_cast<uint32_t>(length);
   data = buffer;
   rotation = sample.rotation();
 }
 
 }  // namespace cricket