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

webrtc/modules/audio_device/linux/audio_device_pulse_linux.h

 /*
  *  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 286 matching lines @@
 
     int sample_rate_hz_;
     uint8_t _recChannels;
     uint8_t _playChannels;
 
     AudioDeviceModule::BufferType _playBufType;
 
     // Stores thread ID in constructor.
     // We can then use ThreadChecker::CalledOnValidThread() to ensure that
     // other methods are called from the same thread.
-    // Currently only does DCHECK(thread_checker_.CalledOnValidThread()).
+    // Currently only does RTC_DCHECK(thread_checker_.CalledOnValidThread()).
     rtc::ThreadChecker thread_checker_;
 
     bool _initialized;
     bool _recording;
     bool _playing;
     bool _recIsInitialized;
     bool _playIsInitialized;
     bool _startRec;
     bool _stopRec;
     bool _startPlay;
@@ skipping 48 matching lines @@
     pa_buffer_attr _playBufferAttr;
     pa_buffer_attr _recBufferAttr;
 
     char _oldKeyState[32];
     Display* _XDisplay;
 };
 
 }
 
 #endif  // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_DEVICE_PULSE_LINUX_H_