Allow disabling of resampling in decodeAudioData

third_party/WebKit/Source/platform/audio/AudioBus.cpp

 /*
  * Copyright (C) 2010 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
@@ skipping 687 matching lines @@
     return AudioBus::createBySampleRateConverting(audioBus.get(), false, sampleRate);
 }
 
 PassRefPtr<AudioBus> createBusFromInMemoryAudioFile(const void* data, size_t dataSize, bool mixToMono, float sampleRate)
 {
     RefPtr<AudioBus> audioBus = decodeAudioFileData(static_cast<const char*>(data), dataSize);
     if (!audioBus.get())
         return nullptr;
 
     // If the bus needs no conversion then return as is.
-    if ((!mixToMono || audioBus->numberOfChannels() == 1) && audioBus->sampleRate() == sampleRate)
+    if ((!mixToMono || audioBus->numberOfChannels() == 1)
+        && (audioBus->sampleRate() == sampleRate || sampleRate == 0))
         return audioBus;
 
     return AudioBus::createBySampleRateConverting(audioBus.get(), mixToMono, sampleRate);
 }
 
 } // namespace blink