ScriptProcessor buffer size should be consistent with callback size

third_party/WebKit/Source/modules/webaudio/BaseAudioContext.h

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 123 matching lines @@
     // node has gone away? 0 is a valid time.
     return m_destinationNode
                ? m_destinationNode->audioDestinationHandler().currentTime()
                : 0;
   }
 
   float sampleRate() const {
     return m_destinationNode ? m_destinationNode->handler().sampleRate() : 0;
   }
 
+  size_t callbackBufferSize() const {
+    return m_destinationNode ? m_destinationNode->handler().callbackBufferSize()
+                             : 0;
+  }
+
   String state() const;
   AudioContextState contextState() const { return m_contextState; }
   void throwExceptionForClosedState(ExceptionState&);
 
   AudioBuffer* createBuffer(unsigned numberOfChannels,
                             size_t numberOfFrames,
                             float sampleRate,
                             ExceptionState&);
 
   // Asynchronous audio file data decoding.
@@ skipping 297 matching lines @@
   // It is somewhat arbitrary and could be increased if necessary.
   enum { MaxNumberOfChannels = 32 };
 
   Optional<AutoplayStatus> m_autoplayStatus;
   AudioIOPosition m_outputPosition;
 };
 
 }  // namespace blink
 
 #endif  // BaseAudioContext_h