requiresCompositingForScrollableFrame   32 Source/core/rendering/compositing/CompositingReasonFinder.h     bool requiresCompositingForScrollableFrame() const;
requiresCompositingForScrollableFrame  256 Source/core/rendering/compositing/RenderLayerCompositor.cpp             forceCompositingMode = m_compositingReasonFinder.requiresCompositingForScrollableFrame();