AudioBus::loadPlatformResource should mmap file on Mac port.
Created attachment 118836 [details]
Created attachment 118896 [details]
Rebased patch against ToT.
Committed r104858: <http://trac.webkit.org/changeset/104858>
This patch broke Snow Leopard builds. NSDataReadingMappedIfSafe isn't defined in 10.6 and earlier versions of Mac OS X.