[gtk] (4 commits) Non-fast-forward update to branch matthiasc/for-master

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/for-master' 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:

  fb2cc9a... Quiet a compiler warning

Commits added to the branch:

  b2b89f6... css: Add gtk_css_style_get_static_style (*)
  5910e5a... Merge branch 'static-style-getter' into 'master' (*)
  3182063... Quiet a compiler warning (*)
  eab224d... Change the signature of gtk_css_style_get_static_style

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