[CoordGraphics] Clean up CoordinatedGraphicsScene construct-time initializations
Created attachment 336507 [details] Patch
Comment on attachment 336507 [details] Patch Clearing flags on attachment: 336507 Committed r229972: <https://trac.webkit.org/changeset/229972>
All reviewed patches have been landed. Closing bug.
<rdar://problem/38856843>