Replace GetBufferDataDest with ArrayBufferData

The typedef for (ArrayBuffer or ArrayBufferView) is now
part of WebIDL:
http://heycam.github.io/webidl/#common-ArrayBufferData

It seems the IDL file was a little out of date to, so this
is the generated file from tip-of-tree.
Merge pull request #725 from grorg/ArrayBufferData

Replace GetBufferDataDest with ArrayBufferData