Adding more detail to MessageQueue::Dispatch logging.

webrtc/base/rtccertificategenerator.cc

 /*
  *  Copyright 2016 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 48 matching lines @@
     switch (msg->message_id) {
       case MSG_GENERATE:
         RTC_DCHECK(worker_thread_->IsCurrent());
 
         // Perform the certificate generation work here on the worker thread.
         certificate_ = RTCCertificateGenerator::GenerateCertificate(
             key_params_, expires_ms_);
 
         // Handle callbacks on signaling thread. Pass on the |msg->pdata|
         // (which references |this| with ref counting) to that thread.
-        signaling_thread_->Post(this, MSG_GENERATE_DONE, msg->pdata);
+        signaling_thread_->Post(RTC_FROM_HERE, this, MSG_GENERATE_DONE,
+                                msg->pdata);
         break;
       case MSG_GENERATE_DONE:
         RTC_DCHECK(signaling_thread_->IsCurrent());
 
         // Perform callback with result here on the signaling thread.
         if (certificate_) {
           callback_->OnSuccess(certificate_);
         } else {
           callback_->OnFailure();
         }
@@ skipping 65 matching lines @@
   RTC_DCHECK(callback);
 
   // Create a new |RTCCertificateGenerationTask| for this generation request. It
   // is reference counted and referenced by the message data, ensuring it lives
   // until the task has completed (independent of |RTCCertificateGenerator|).
   ScopedRefMessageData<RTCCertificateGenerationTask>* msg_data =
       new ScopedRefMessageData<RTCCertificateGenerationTask>(
           new RefCountedObject<RTCCertificateGenerationTask>(
               signaling_thread_, worker_thread_, key_params, expires_ms,
               callback));
-  worker_thread_->Post(msg_data->data().get(), MSG_GENERATE, msg_data);
+  worker_thread_->Post(RTC_FROM_HERE, msg_data->data().get(), MSG_GENERATE,
+                       msg_data);
 }
 
 }  // namespace rtc