The cached JS and CSS for media controls that hangs off of RenderTheme on macOS and iOS is pretty chunky. If nothing is using it and we come under memory pressure, let's drop it.
Created attachment 297893 [details] Patch
Created attachment 297895 [details] Patch4landing
Comment on attachment 297895 [details] Patch4landing Clearing flags on attachment: 297895 Committed r210224: <http://trac.webkit.org/changeset/210224>
All reviewed patches have been landed. Closing bug.