Bug xxxxxx - Convert another gfx::Point to a ScreenPoint. r=
Bug xxxxxx - Convert some things in APZC::SampleContentTransformForFrame. r=
Bug xxxxxx - Make the ViewTransform classes store the unscaled layer translation. r=
Bug xxxxxx - Units.h cleanup for easier reading of future patches. r=
Bug xxxxxx - Move the RoundToInt functions into the Point and Rect classes. r=
Bug xxxxxx - Introduce a ScaleFactor struct and use it to type conversions between units. r=
Bug xxxxxx - Replace a couple of Rect scaling functions with strongly typed operators. r=
Bug xxxxxx - Convert WidgetSpaceToCompensatedViewportSpace to the new gfx types. r=
Squash up two
Bug xxxxxx - Remove ToCSSIntRectRoundIn and convert APZC::CalculateResolution to return a ScaleFactor. r=