Test RTC_DCHECK_IS_ON instead of checking DCHECK_ALWAYS_ON everywhere

webrtc/api/statscollector.cc

 /*
  *  Copyright 2012 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 380 matching lines @@
   CreateTrackReports<AudioTrackVector>(stream->GetAudioTracks(),
                                        &reports_, track_ids_);
   CreateTrackReports<VideoTrackVector>(stream->GetVideoTracks(),
                                        &reports_, track_ids_);
 }
 
 void StatsCollector::AddLocalAudioTrack(AudioTrackInterface* audio_track,
                                         uint32_t ssrc) {
   RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent());
   RTC_DCHECK(audio_track != NULL);
-#if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON))
+#if RTC_DCHECK_IS_ON
   for (const auto& track : local_audio_tracks_)
     RTC_DCHECK(track.first != audio_track || track.second != ssrc);
 #endif
 
   local_audio_tracks_.push_back(std::make_pair(audio_track, ssrc));
 
   // Create the kStatsReportTypeTrack report for the new track if there is no
   // report yet.
   StatsReport::Id id(StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack,
                                              audio_track->id()));
@@ skipping 552 matching lines @@
     StatsReport* report = entry.second;
     report->set_timestamp(stats_gathering_started_);
   }
 }
 
 void StatsCollector::ClearUpdateStatsCacheForTest() {
   stats_gathering_started_ = 0;
 }
 
 }  // namespace webrtc