Introduce BifurcatedGraphicsContext
Created attachment 429854 [details] Patch
Created attachment 429855 [details] Patch
If anyone has a way to do this more neatly (I secretly wish this were ObjC) or a better name, I am ALL EARS
Created attachment 429856 [details] Patch
Created attachment 429858 [details] Patch
Tools/Scripts/svn-apply failed to apply attachment 429858 [details] to trunk. Please resolve the conflicts and upload a new patch.
Created attachment 429903 [details] Patch
Committed r278172 (238215@main): <https://commits.webkit.org/238215@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 429903 [details].
<rdar://problem/78580984>