audio_coding: remove "main" directory

webrtc/modules/audio_coding/test/TimedTrace.h

 /*
  *  Copyright (c) 2011 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.
  */
 
-#ifndef TIMED_TRACE_H
-#define TIMED_TRACE_H
+#ifndef WEBRTC_MODULES_AUDIO_CODING_TEST_TIMEDTRACE_H_
+#define WEBRTC_MODULES_AUDIO_CODING_TEST_TIMEDTRACE_H_
 
 #include "webrtc/typedefs.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 
 class TimedTrace {
  public:
   TimedTrace();
   ~TimedTrace();
 
   void SetTimeEllapsed(double myTime);
   double TimeEllapsed();
   void Tick10Msec();
   int16_t SetUp(char* fileName);
   void TimedLogg(char* message);
 
  private:
   static double _timeEllapsedSec;
   static FILE* _timedTraceFile;
 
 };
 
-#endif
+#endif  // WEBRTC_MODULES_AUDIO_CODING_TEST_TIMEDTRACE_H_