[mutter] (9 commits) ...window-actor: Handle geometry scale

[Jonas Ådahl <jadahl src gnome org>]

Summary of changes:

  e33d6b2... clutter/paint-node: Expose clutter_paint_node_get_framebuff (*)
  75cffd0... shaped-texture: Implement ClutterContent (*)
  d3f30d9... wayland/actor-surface: Set geometry scale in surface actor (*)
  425e650... shaped-texture: Draw pipeline relative to alloc (*)
  4c1fde9... shaped-texture: Move MetaCullable helpers to MetaSurfaceAct (*)
  6b35a49... shaped-texture: Move private function to private header (*)
  2d7adb9... wayland/tablet-tool: Use meta_wayland_surface_get_relative_ (*)
  c747be8... wayland: Don't scale input and opaque regions (*)
  fb9e876... window-actor: Handle geometry scale (*)

(*) This commit already existed in another branch; no separate mail sent