clipRRect        1431 Source/platform/graphics/GraphicsContext.cpp     clipRRect(r, AntiAliased, regionOp);
clipRRect        1526 Source/platform/graphics/GraphicsContext.cpp     m_canvas->clipRRect(rect, op, aa == AntiAliased);
clipRRect         434 Source/platform/graphics/GraphicsContext.h     void clipRRect(const SkRRect&, AntiAliasingMode = NotAntiAliased, SkRegion::Op = SkRegion::kIntersect_Op);