FillOnly          215 Source/platform/graphics/skia/OpaqueRegionSkia.cpp     didDraw(context, fillRect, paint, sourceBitmap, fillsBounds, FillOnly);
FillOnly          337 Source/platform/graphics/skia/OpaqueRegionSkia.cpp     bool sourceOpaqueRectDrawsOpaque = paintIsOpaque(paint, FillOnly, 0);