(Committing on behalf of Chris Rogers -- original CL...

(Committing on behalf of Chris Rogers -- original CL http://codereview.chromium.org/5550006/ )

Implement WebKitClientImpl::loadAudioResource() to decode in-memory audio file data for use by WebKit.
Most of the interesting low-level code is being added in the media directory.

BUG=NONE
TEST=NONE (tested locally with web audio API loading files of format .wav .aif .mp3 .m4a 16bit 24bit
In the longer term, WebKit layout tests will comprehensively exercise this code)


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=69458