[gtk] (7 commits) Non-fast-forward update to branch wip/otte/paintable

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/paintable' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  679ed9c... gtk: Add GtkMediaStream
  8bde40f... demos: Add a video benchmark to widgetbowl demo
  3d7e105... gtk: Add GtkMediaControls
  bcbbf45... gtk-demo: Add a video example (with controls) to the images
  6bd34c0... mediastream: Add constructor taking a GFile
  1875ad0... css: Add initial support for Houdini-style paint() images
  c46c054... THIS IS EVIL DEMO CODE, DO NOT LOOK AT IT.

Commits added to the branch:

  3b8fbf6... gtk: Add GtkMediaStream
  1e55f10... demos: Add a video benchmark to widgetbowl demo
  925ec08... gtk: Add GtkMediaControls
  db52f8f... gtk-demo: Add a video example (with controls) to the images
  c56b4be... mediastream: Add constructor taking a GFile
  51dab75... css: Add initial support for Houdini-style paint() images
  ca1ce97... THIS IS EVIL DEMO CODE, DO NOT LOOK AT IT.