Potential WebKit bug when using JavaScriptAudioNode

Hey all,

I hope this list is an appropriate place for this discussion, hoping to get
feedback on this issue and determine if it is actually a bug or if I am
just interpreting the spec incorrectly.

The bug I filed is here:
https://code.google.com/p/chromium/issues/detail?id=129306

The test page:
https://ccrma.stanford.edu/~colinsul/audioOnCanvas/examples/jsaudionode_bug/

My JavaScriptAudioNode's `onaudioprocess` method consistently ceases to
fire, and it sounds like the previous buffer repeats forever.  This only
happens for me if I don't wait a few seconds before retrieving and playing
the audio, but I have not tested on many other systems/browsers.
----------
Colin