Compute the non-fast-scrollable region in main-document coordinates
Created attachment 252012 [details] Patch
https://trac.webkit.org/r183597
This may have broken iOS builds: > CompileC ScrollingCoordinator.o > Source/WebCore/page/scrolling/ScrollingCoordinator.cpp:107:18: error: use of undeclared identifier 'frameLocation'
Was an easy build fix: https://trac.webkit.org/changeset/183606