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

talk/media/webrtc/webrtcvoiceengine_unittest.cc

 /*
  * libjingle
  * Copyright 2008 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 79 matching lines @@
   int SetTraceCallback(webrtc::TraceCallback* callback) override { return 0; }
   unsigned int filter_;
 };
 
 class WebRtcVoiceEngineTestFake : public testing::Test {
  public:
   class ChannelErrorListener : public sigslot::has_slots<> {
    public:
     explicit ChannelErrorListener(cricket::VoiceMediaChannel* channel)
         : ssrc_(0), error_(cricket::VoiceMediaChannel::ERROR_NONE) {
-      DCHECK(channel != NULL);
+      RTC_DCHECK(channel != NULL);
       channel->SignalMediaError.connect(
           this, &ChannelErrorListener::OnVoiceChannelError);
     }
     void OnVoiceChannelError(uint32 ssrc,
                              cricket::VoiceMediaChannel::Error error) {
       ssrc_ = ssrc;
       error_ = error;
     }
     void Reset() {
       ssrc_ = 0;
@@ skipping 3448 matching lines @@
 
 // Test that we set our preferred codecs properly.
 TEST(WebRtcVoiceEngineTest, SetRecvCodecs) {
   cricket::WebRtcVoiceEngine engine;
   EXPECT_TRUE(engine.Init(rtc::Thread::Current()));
   rtc::scoped_ptr<webrtc::Call> call(
       webrtc::Call::Create(webrtc::Call::Config()));
   cricket::WebRtcVoiceMediaChannel channel(&engine, call.get());
   EXPECT_TRUE(channel.SetRecvCodecs(engine.codecs()));
 }