ImageBuffer::flushContext() is redundant, it is the same as flushDrawingContext().
<rdar://problem/105973502>
<rdar://problem/105976624>
Pull request: https://github.com/WebKit/WebKit/pull/10729
Committed 261915@main (6b5c45e49165): <https://commits.webkit.org/261915@main> Reviewed commits have been landed. Closing PR #10729 and removing active labels.
*** Bug 253430 has been marked as a duplicate of this bug. ***