[Cairo] Don't mirror global alpha and image interpolation quality state values in PlatformContextCairo
Created attachment 331482 [details] Patch
Created attachment 331483 [details] Patch for landing
Comment on attachment 331483 [details] Patch for landing Clearing flags on attachment: 331483 Committed r227065: <https://trac.webkit.org/changeset/227065>
All reviewed patches have been landed. Closing bug.
<rdar://problem/36580633>