[gtk] (22 commits) ...Merge branch 'gdk-api-cleanups' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  6b6f26e... Add a window move/resize test (*)
  d45996c... Avoid root coordinates in begin_drag/move apis (*)
  f7d3815... a11y: Don't support changing widget size and position (*)
  27c2867... tests: Stop using gtk_window_move (*)
  2ed533c... file chooser: Stop using gtk_window_get_position (*)
  6f072c8... treeview: Stop using gtk_window_move (*)
  0481f12... Drop gtk_window_move and gtk_window_get_position (*)
  de741e5... tests: Stop using gtk_window_set_gravity (*)
  eb4e7b9... Remove GtkWindow::gravity (*)
  54a969e... gdk: Stop using gdk_surface_get_device_position (*)
  2d10a7b... gtk: Stop using gdk_surface_get_device_position (*)
  f1d61d5... Drop gdk_surface_get_device_position (*)
  2158030... Rename gdk_surface_get_device_position_double (*)
  8dece0e... gdk: Stop using gdk_device_get_position (*)
  7e47076... gtk: Stop using gdk_device_get_position (*)
  6288043... Drop gdk_device_get_position (*)
  03eb455... Rename gdk_device_get_position_double (*)
  9021e7d... gdk: Stop using gdk_device_get_surface_at_position (*)
  562cc8b... gtk: Stop using gtk_device_get_surface_at_position (*)
  5935f26... Drop gdk_device_get_surface_at_position (*)
  c0aaa43... Rename gdk_device_get_surface_at_position_double (*)
  8984320... Merge branch 'gdk-api-cleanups' into 'master'

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