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

talk/media/webrtc/fakewebrtccall.cc

Index: talk/media/webrtc/fakewebrtccall.cc
diff --git a/talk/media/webrtc/fakewebrtccall.cc b/talk/media/webrtc/fakewebrtccall.cc
index a85bdb10b4655de9212e1cedc98322c65e4470e4..9f2c8e53df7b0ce5ec870f69d415cf81f72c2da1 100644
--- a/talk/media/webrtc/fakewebrtccall.cc
+++ b/talk/media/webrtc/fakewebrtccall.cc
@@ -37,7 +37,7 @@ namespace cricket {
 FakeAudioReceiveStream::FakeAudioReceiveStream(
     const webrtc::AudioReceiveStream::Config& config)
     : config_(config), received_packets_(0) {
-  DCHECK(config.voe_channel_id != -1);
+  RTC_DCHECK(config.voe_channel_id != -1);
 }
 
 webrtc::AudioReceiveStream::Stats FakeAudioReceiveStream::GetStats() const {
@@ -60,7 +60,7 @@ FakeVideoSendStream::FakeVideoSendStream(
       config_(config),
       codec_settings_set_(false),
       num_swapped_frames_(0) {
-  DCHECK(config.encoder_settings.encoder != NULL);
+  RTC_DCHECK(config.encoder_settings.encoder != NULL);
   ReconfigureVideoEncoder(encoder_config);
 }
 
@@ -113,7 +113,7 @@ int FakeVideoSendStream::GetLastHeight() const {
 }
 
 int64_t FakeVideoSendStream::GetLastTimestamp() const {
-  DCHECK(last_frame_.ntp_time_ms() == 0);
+  RTC_DCHECK(last_frame_.ntp_time_ms() == 0);
   return last_frame_.render_time_ms();
 }