Update thread annotiation macros to use RTC_ prefix

webrtc/pc/mediamonitor.h

 /*
  *  Copyright 2005 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 43 matching lines @@
       : MediaMonitor(worker_thread, monitor_thread),
         media_channel_(media_channel) {}
   sigslot::signal2<MC*, const MI&> SignalUpdate;
 
  protected:
   // These routines assume the crit_ lock is held by the calling thread.
   virtual void GetStats() {
     media_info_.Clear();
     media_channel_->GetStats(&media_info_);
   }
-  virtual void Update() EXCLUSIVE_LOCKS_REQUIRED(crit_) {
+  virtual void Update() RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_) {
     MI stats(media_info_);
     crit_.Leave();
     SignalUpdate(media_channel_, stats);
     crit_.Enter();
   }
 
  private:
   MC* media_channel_;
   MI media_info_;
 };
 
 typedef MediaMonitorT<VoiceMediaChannel, VoiceMediaInfo> VoiceMediaMonitor;
 typedef MediaMonitorT<VideoMediaChannel, VideoMediaInfo> VideoMediaMonitor;
 typedef MediaMonitorT<DataMediaChannel, DataMediaInfo> DataMediaMonitor;
 
 }  // namespace cricket
 
 #endif  // WEBRTC_PC_MEDIAMONITOR_H_