Update thread annotiation macros in modules to use RTC_ prefix

webrtc/modules/congestion_controller/include/receive_side_congestion_controller.h

 /*
  *  Copyright (c) 2017 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 64 matching lines @@
 
     void RemoveStream(unsigned int ssrc) override;
 
     bool LatestEstimate(std::vector<unsigned int>* ssrcs,
                         unsigned int* bitrate_bps) const override;
 
     void SetMinBitrate(int min_bitrate_bps) override;
 
    private:
     void PickEstimatorFromHeader(const RTPHeader& header)
-        EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
-    void PickEstimator() EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
+        RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
+    void PickEstimator() RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
     RemoteBitrateObserver* observer_;
     const Clock* const clock_;
     rtc::CriticalSection crit_sect_;
     std::unique_ptr<RemoteBitrateEstimator> rbe_;
     bool using_absolute_send_time_;
     uint32_t packets_since_absolute_send_time_;
     int min_bitrate_bps_;
 
     RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(WrappingBitrateEstimator);
   };
 
   WrappingBitrateEstimator remote_bitrate_estimator_;
   RemoteEstimatorProxy remote_estimator_proxy_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_CONGESTION_CONTROLLER_INCLUDE_RECEIVE_SIDE_CONGESTION_CONTROLLER_H_