Add RTC_ prefix to contructormagic macros.

webrtc/modules/audio_coding/neteq/comfort_noise.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 48 matching lines @@
   // decoder. Returns 0 if no error has been encountered since the last reset.
   int internal_error_code() { return internal_error_code_; }
 
  private:
   int fs_hz_;
   bool first_call_;
   size_t overlap_length_;
   DecoderDatabase* decoder_database_;
   SyncBuffer* sync_buffer_;
   int internal_error_code_;
-  DISALLOW_COPY_AND_ASSIGN(ComfortNoise);
+  RTC_DISALLOW_COPY_AND_ASSIGN(ComfortNoise);
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_COMFORT_NOISE_H_