[gtk/matthiasc/for-master] (17 commits) ...testsuite: Take border-color-transparent out of xfails

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  2240eb5... header-bar: Stop showing application menu (*)
  cead405... header-bar: Don't assume there's only one icon (*)
  016eac0... header-bar: Track window icon changes (*)
  451c327... window: Introduce actions for window buttons (*)
  861bff4... Merge branch 'matthiasc/for-master' into 'master' (*)
  424a86a... Adwaita: lower glyph contrast for checkboxes (*)
  7fe51a8... Merge branch 'wip/jimmac/uniform-checkboxes' into 'master' (*)
  b0f2cd0... window: Tweak visible focus behavior (*)
  610d579... headerbar: Update window buttons automatically (*)
  7c4694c... window: Stop listening to headerbar title changes (*)
  fd47e86... Merge branch 'focus-ring-experiment' into 'master' (*)
  389575e... Merge branch 'wip/exalm/window-headerbar' into 'master' (*)
  b2deab6... Drop gtk_widget_has_grab (*)
  8871327... Merge branch 'grab-leftovers' into 'master' (*)
  7ce964a... reftests: Avoid decorations
  c8d4a48... reftests: Avoid theme influence
  894e1d0... testsuite: Take border-color-transparent out of xfails

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