Add RTC_ prefix to (D)CHECKs and related macros.

webrtc/modules/remote_bitrate_estimator/overuse_detector.cc

 /*
  *  Copyright (c) 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 125 matching lines @@
       k * (fabs(modified_offset) - threshold_) * (now_ms - last_update_ms_);
 
   const double kMinThreshold = 6;
   const double kMaxThreshold = 600;
   threshold_ = std::min(std::max(threshold_, kMinThreshold), kMaxThreshold);
 
   last_update_ms_ = now_ms;
 }
 
 void OveruseDetector::InitializeExperiment() {
-  DCHECK(in_experiment_);
+  RTC_DCHECK(in_experiment_);
   double k_up = 0.0;
   double k_down = 0.0;
   overusing_time_threshold_ = kOverUsingTimeThreshold;
   if (ReadExperimentConstants(&k_up, &k_down)) {
     k_up_ = k_up;
     k_down_ = k_down;
   }
 }
 }  // namespace webrtc