Add RTC_ prefix to contructormagic macros.

webrtc/sound/pulseaudiosoundsystem.h

 /*
  *  Copyright 2004 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 149 matching lines @@
   void Unlock();
   void Wait();
   void Signal();
 
   const char *LastError();
 
   pa_threaded_mainloop *mainloop_;
   pa_context *context_;
   PulseAudioSymbolTable symbol_table_;
 
-  DISALLOW_COPY_AND_ASSIGN(PulseAudioSoundSystem);
+  RTC_DISALLOW_COPY_AND_ASSIGN(PulseAudioSoundSystem);
 };
 
 }  // namespace rtc
 
 #endif  // HAVE_LIBPULSE
 
 #endif  // WEBRTC_SOUND_PULSEAUDIOSOUNDSYSTEM_H_