[gtk] (15 commits) Created branch wip/otte/paintable

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/paintable' was created.

Summary of new commits:

  7a36aba... css: Introduce the idea of dynamic values
  801304e... cssimage: Implement dynamic values
  a682097... cssimage: Make builtin images rotate
  f80fafe... css: Implement support for dynamic values
  68d4c20... cssimage: Get rid of draw vfunc
  c2f96fd... gdk: Add GdkPaintable
  757fa44... snapshot: "Inherit" from GdkSnapshot
  3897294... texture: Implement GdkPaintable
  8645d57... iconhelper: transition to GdkPaintable
  04ca58d... image: Implement support for paintables
  e0752bb... xxx: add paintable
  aff8e75... vulkan: Keep track of command buffers
  68e7943... xxx: paintable
  8fb3986... xxx: image implement paintable
  2c5afbd... demos: Add a video playing GdkPaintable