Add RTC_ prefix to contructormagic macros.

webrtc/modules/audio_coding/neteq/preemptive_expand.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 52 matching lines @@
                                       size_t peak_index,
                                       int16_t best_correlation,
                                       bool active_speech,
                                       bool /*fast_mode*/,
                                       AudioMultiVector* output) const override;
 
  private:
   size_t old_data_length_per_channel_;
   size_t overlap_samples_;
 
-  DISALLOW_COPY_AND_ASSIGN(PreemptiveExpand);
+  RTC_DISALLOW_COPY_AND_ASSIGN(PreemptiveExpand);
 };
 
 struct PreemptiveExpandFactory {
   PreemptiveExpandFactory() {}
   virtual ~PreemptiveExpandFactory() {}
 
   virtual PreemptiveExpand* Create(
       int sample_rate_hz,
       size_t num_channels,
       const BackgroundNoise& background_noise,
       size_t overlap_samples) const;
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_PREEMPTIVE_EXPAND_H_