This will be done by sending a message with the SharedMemory::Handle from GPUProcess to WebProcess after the memory is created. When receiving this message, WebProcess will call takeOwnershipOfMemory() to acquire the ownership of this memory.
<rdar://problem/94118219>
Pull request: https://github.com/WebKit/WebKit/pull/1368
Committed 251798@main (2166784c7ea6): <https://commits.webkit.org/251798@main> Reviewed commits have been landed. Closing PR #1368 and removing active labels.