In Bug 184322 I added a number of RELEASE_ASSERT checks that WindowServer-related calls were not being made in the WebContent process. Measurements have shown that these RELEASE_ASSERTs have regressed performance by around 1% on some benchmarks, so we should convert them to normal asserts.
<rdar://problem/40372286>
Created attachment 340719 [details] Patch
Comment on attachment 340719 [details] Patch r=me
Comment on attachment 340719 [details] Patch Clearing flags on attachment: 340719 Committed r231980: <https://trac.webkit.org/changeset/231980>
All reviewed patches have been landed. Closing bug.