Prepare for memory ownership transfer in the GPUProcess.
Created attachment 420855 [details]
Created attachment 420858 [details]
Comment on attachment 420858 [details]
Thanks for reviewing. I should be able to do ownership transfer for IOSurfaces for the GPUProcess in the next few days.
Committed r273288: <https://commits.webkit.org/r273288>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 420858 [details].