IOSurface should not store a reference to a CGContext
<rdar://problem/106547690>
Pull request: https://github.com/WebKit/WebKit/pull/11356
Committed 261699@main (902a49a99629): <https://commits.webkit.org/261699@main> Reviewed commits have been landed. Closing PR #11356 and removing active labels.
Re-opened since this is blocked by bug 254153