[gtk] (14 commits) Non-fast-forward update to branch 324.win32.build

[Chun-wei Fan <fanchunwei src gnome org>]

The branch '324.win32.build' 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:

  d4964ab... gtk/Makefile.am: Dist the newly-added private headers
  b319a70... gtk/: Fix build without PangoFT2 and HarfBuzz
  91738fe... demos/gtk-demo/gtkfishbowl.c: Include gtk/fallback-c89.c

Commits added to the branch:

  3ebcc5a... searchenginetracker: Don't leak the hits' GFiles (*)
  5265514... Merge branch 'wip/dboles/searchenginetracker-plug-3' into ' (*)
  0a37b56... x11: Add necessary NULL check (*)
  4c61ff2... HC: Avoid same BG/FG colors in flat treeview entry (*)
  b1997c9... InfoBar: Fix wrong type in copy-pasted param doc (*)
  3f48bba... gtk3-sections: Add GtkInfoBar.[gs]et-revealed() (*)
  7f91af2... HC: Avoid excessive selectors from prev commit (*)
  848a524... Adwaita: Regenerate CSS for emoji completion popup (*)
  7dbd3da... Adwaita: Don't use a property that GTK+ 3 lacks (*)
  934b40f... EmojiCompletion: Use Box:spacing instead of CSS (*)
  9156908... EmojiCompletion: Avoid un/signed compare warnings (*)
  155206c... gtk/Makefile.am: Dist the newly-added private headers
  5df2682... gtk/: Fix build without PangoFT2 and HarfBuzz
  43aaf29... demos/gtk-demo/gtkfishbowl.c: Include gtk/fallback-c89.c

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