Add RTC_ prefix to contructormagic macros.

webrtc/modules/audio_coding/neteq/tools/audio_checksum.h

 /*
  *  Copyright (c) 2014 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 33 matching lines @@
       checksum_.Finish(checksum_result_, rtc::Md5Digest::kSize);
     }
     return rtc::hex_encode(checksum_result_, rtc::Md5Digest::kSize);
   }
 
  private:
   rtc::Md5Digest checksum_;
   char checksum_result_[rtc::Md5Digest::kSize];
   bool finished_;
 
-  DISALLOW_COPY_AND_ASSIGN(AudioChecksum);
+  RTC_DISALLOW_COPY_AND_ASSIGN(AudioChecksum);
 };
 
 }  // namespace test
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_CHECKSUM_H_