* commit '98a5fcd895cce64a879982acd17c9ca52e6177ee': Trigger a full screen repaint when touching layers, as webkitDraw() may not generate the correct invalidations.
* commit '98a5fcd895cce64a879982acd17c9ca52e6177ee': Trigger a full screen repaint when touching layers, as webkitDraw() may not generate the correct invalidations.