[gtk] (9 commits) Non-fast-forward update to branch readonly-events-1

[Matthias Clasen <matthiasc src gnome org>]

The branch 'readonly-events-1' 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:

  db824b8... Keep more event controller api private
  c2fe434... a11y: drop unused code
  c52f3b2... gtk: Stop using GdkEventKey
  f630d49... gtk: Stop using GtkEventButton
  3c60c67... gdk: Drop event structs from the headers
  715c74c... gtk-demo: Stop using gtk_get_event_widget
  36df45d... Stop exporting gtk_get_event_widget
  0b5621a... docs: Remove some no-longer existing api

Commits added to the branch:

  fa4d349... Keep more event controller api private
  d99bcc6... motion controller: Match focus event propagation
  e60b744... a11y: drop unused code
  84494b2... gtk: Stop using GdkEventKey
  bf8138c... gtk: Stop using GtkEventButton
  90de26b... gdk: Drop event structs from the headers
  eda64c7... gtk-demo: Stop using gtk_get_event_widget
  5403bd3... Stop exporting gtk_get_event_widget
  c292eb4... docs: Remove some no-longer existing api