Add RTC_ prefix to contructormagic macros.

webrtc/test/mac/video_renderer_mac.h

 /*
  *  Copyright (c) 2013 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 15 matching lines @@
 
   bool Init(const char* window_title, int width, int height);
 
   // Implements GlRenderer.
   void RenderFrame(const VideoFrame& frame, int delta) override;
   bool IsTextureSupported() const override { return false; }
 
  private:
   CocoaWindow* window_;
 
-  DISALLOW_COPY_AND_ASSIGN(MacRenderer);
+  RTC_DISALLOW_COPY_AND_ASSIGN(MacRenderer);
 };
 }  // test
 }  // webrtc
 
 #endif  // WEBRTC_VIDEO_ENGINE_TEST_COMMON_MAC_VIDEO_RENDERER_MAC_H_