Support sample rates up to 384 kHz.

third_party/WebKit/Source/modules/webaudio/OfflineAudioContext.cpp

 /*
  * Copyright (C) 2012, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 93 matching lines @@
   // at 48kHz).  The number of buckets is fairly arbitrary.
   DEFINE_STATIC_LOCAL(CustomCountHistogram, offlineContextLengthHistogram,
                       ("WebAudio.OfflineAudioContext.Length", 1, 1000000, 50));
   // The limits are the min and max AudioBuffer sample rates currently
   // supported.  We use explicit values here instead of
   // AudioUtilities::minAudioBufferSampleRate() and
   // AudioUtilities::maxAudioBufferSampleRate().  The number of buckets is
   // fairly arbitrary.
   DEFINE_STATIC_LOCAL(
       CustomCountHistogram, offlineContextSampleRateHistogram,
-      ("WebAudio.OfflineAudioContext.SampleRate", 3000, 192000, 50));
+      ("WebAudio.OfflineAudioContext.SampleRate384kHz", 3000, 384000, 50));
 
   offlineContextChannelCountHistogram.sample(numberOfChannels);
   offlineContextLengthHistogram.count(numberOfFrames);
   offlineContextSampleRateHistogram.count(sampleRate);
 
   audioContext->suspendIfNeeded();
   return audioContext;
 }
 
 OfflineAudioContext::OfflineAudioContext(Document* document,
@@ skipping 311 matching lines @@
 
   // Note that the GraphLock is required before this check. Since this needs
   // to run on the audio thread, OfflineGraphAutoLocker must be used.
   if (m_scheduledSuspends.contains(currentSampleFrame()))
     return true;
 
   return false;
 }
 
 }  // namespace blink