Use RaceChecker instead of ThreadChecker in a few places.

webrtc/modules/pacing/packet_router.h

 /*
  *  Copyright (c) 2015 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.
  */
 
 #ifndef WEBRTC_MODULES_PACING_PACKET_ROUTER_H_
 #define WEBRTC_MODULES_PACING_PACKET_ROUTER_H_
 
 #include <list>
 #include <vector>
 
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/base/thread_annotations.h"
-#include "webrtc/base/thread_checker.h"
+#include "webrtc/base/race_checker.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/pacing/paced_sender.h"
 #include "webrtc/modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 
 namespace webrtc {
 
 class RtpRtcp;
 namespace rtcp {
 class TransportFeedback;
@@ skipping 46 matching lines @@
                                uint32_t bitrate_bps) override;
 
   // Send REMB feedback.
   virtual bool SendRemb(uint32_t bitrate_bps,
                         const std::vector<uint32_t>& ssrcs);
 
   // Send transport feedback packet to send-side.
   virtual bool SendTransportFeedback(rtcp::TransportFeedback* packet);
 
  private:
-  rtc::ThreadChecker pacer_thread_checker_;
+  rtc::RaceChecker pacer_race_;
   rtc::CriticalSection modules_crit_;
   std::list<RtpRtcp*> rtp_send_modules_ GUARDED_BY(modules_crit_);
   std::vector<RtpRtcp*> rtp_receive_modules_ GUARDED_BY(modules_crit_);
 
   rtc::CriticalSection remb_crit_;
   // The last time a REMB was sent.
   int64_t last_remb_time_ms_ GUARDED_BY(remb_crit_);
   uint32_t last_send_bitrate_bps_ GUARDED_BY(remb_crit_);
   // The last bitrate update.
   uint32_t bitrate_bps_ GUARDED_BY(remb_crit_);
 
   volatile int transport_seq_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(PacketRouter);
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_PACING_PACKET_ROUTER_H_