[mutter] (8 commits) Created branch wip/fmuellner/gtk-shadows

[Florian Müllner <fmuellner src gnome org>]

The branch 'wip/fmuellner/gtk-shadows' was created.

Summary of new commits:

  aae0071... shaped-texture: Only mask alpha channel
  9149f56... ui: Render frame in mask as well
  482a581... theme: Consider frame borders in titlebar
  385cce7... window-actor: Update mask on focus changes
  b35ad08... window-actor: Use different shape_regions/masks based on fo
  45a273d... window-actor: Only recompute shape region and mask if neces
  42ecde5... window-actor: Stop adding shadows to windows with frames
  6a9ca17... theme: Update style classes to match CSD decorations