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

webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc

Index: webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc
diff --git a/webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc b/webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc
index 9bac153ac82f5273b255bfe53d53d46a99f32beb..6771c454ddf8b060d7dd2ab7122c6691c979634c 100644
--- a/webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc
+++ b/webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc
@@ -104,7 +104,7 @@ void AimdRateControl::Update(const RateControlInput* input, int64_t now_ms) {
   // second.
   if (!bitrate_is_initialized_) {
     const int64_t kInitializationTimeMs = 5000;
-    DCHECK_LE(kBitrateWindowMs, kInitializationTimeMs);
+    RTC_DCHECK_LE(kBitrateWindowMs, kInitializationTimeMs);
     if (time_first_incoming_estimate_ < 0) {
       if (input->_incomingBitRate > 0) {
         time_first_incoming_estimate_ = now_ms;