Adding more detail to MessageQueue::Dispatch logging.

webrtc/base/worker.cc

 /*
  *  Copyright 2004 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 45 matching lines @@
     return false;
   }
   OnStop();
   worker_thread_->Clear(this, MSG_HAVEWORK);
   worker_thread_ = NULL;
   return true;
 }
 
 void Worker::HaveWork() {
   ASSERT(worker_thread_ != NULL);
-  worker_thread_->Post(this, MSG_HAVEWORK);
+  worker_thread_->Post(RTC_FROM_HERE, this, MSG_HAVEWORK);
 }
 
 void Worker::OnMessage(rtc::Message *msg) {
   ASSERT(msg->message_id == MSG_HAVEWORK);
   ASSERT(worker_thread_ == rtc::Thread::Current());
   OnHaveWork();
 }
 
 }  // namespace rtc