Currently, the code is: // If we have accelerated scrolling, let the scrolling be handled outside of WebKit. if (hasTouchScrollableOverflow()) on iOS hasTouchScrollableOverflow() is equivalent to usesAcceleratedScrolling(), so we could do that minor change for code clarity.
Created attachment 313703 [details] Patch
Committed r218756: <http://trac.webkit.org/changeset/218756>