Although we originally thought this was needed for H.264 decoding, testing shows that this class is never used in WebKit flows, and is not needed. We should remove it.
Created attachment 414302 [details]
This is actually:
Committed r269911: <https://trac.webkit.org/changeset/269911>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 414302 [details].
I rolled this change out as part of this <https://trac.webkit.org/changeset/270061>.
Instead, we will dynamically extend to WebContent when needed (eventually never), and grant access in GPU Process.