Rename ExceptionCode constants to use the names in the spec (2/3)

Source/modules/webaudio/AudioBuffer.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 76 matching lines @@
 }
 
 void AudioBuffer::releaseMemory()
 {
     m_channels.clear();
 }
 
 Float32Array* AudioBuffer::getChannelData(unsigned channelIndex, ExceptionCode& ec)
 {
     if (channelIndex >= m_channels.size()) {
-        ec = SYNTAX_ERR;
+        ec = SyntaxError;
         return 0;
     }
 
     return m_channels[channelIndex].get();
 }
 
 Float32Array* AudioBuffer::getChannelData(unsigned channelIndex)
 {
     if (channelIndex >= m_channels.size())
         return 0;
 
     return m_channels[channelIndex].get();
 }
 
 void AudioBuffer::zero()
 {
     for (unsigned i = 0; i < m_channels.size(); ++i) {
         if (getChannelData(i))
             getChannelData(i)->zeroRange(0, length());
     }
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)