[gtk] (8 commits) ...Ensure icon themes are loaded with other themes

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  3c03d79... More profiler reshuffling (*)
  527b67a... wayland: Add a mark for cursor loading (*)
  59a31e0... gdk: Add a profiler mark for paint_idle (*)
  73a214d... application: Add some profiler marks (*)
  0fe9643... css: Add a profiler mark around theme loading (*)
  9b29da9... iconhelper: Add profiler marks around icon loading (*)
  4ac8011... icontheme: Add profiler marks around icon theme loading (*)
  88d26b7... Ensure icon themes are loaded with other themes (*)

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