Consistently treat gdkenumtypes.[hc] as source files

Always generate gdk/gdkenumtypes.c in the source tree, and fix path in the
introspection sources. With this, gdkenumtypes.c is correctly included with
separate build trees, too. This fixes missing GTypes in the .gir when using a
separate build tree.

Also remove the gdk/stamp-gdkenumtypes.h target. It was forcing the
regeneration of gdk/gdkenumtypes.h even if it was already present and current
in the source tree.

Bug: https://bugzilla.gnome.org/show_bug.cgi?id=647729
Bug-Ubuntu: https://launchpad.net/bugs/769256
Forwarded: yes

Gbp-Pq: Name 018_gdkenumtypes.c_location.patch

Do not allow devices in an offscreen hierarchy to take grabs.

Bug: https://bugzilla.gnome.org/show_bug.cgi?id=658563
Bug-Ubuntu: https://launchpad.net/bugs/804009
Forwarded: yes

Gbp-Pq: Name 017_no_offscreen_device_grabbing.patch

Don't let offscreen widget do grabbing

Bug: https://bugzilla.gnome.org/show_bug.cgi?id=607668
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=658563
Bug-Ubuntu: https://bugs.launchpad.net/bugs/512427
Forwarded: yes

Gbp-Pq: Name 016_no_offscreen_widgets_grabbing.patch

gtk+3.0 (3.22.29-3) unstable; urgency=medium

  * Team upload
  * Allow stderr in autopkgtests. They produce harmless diagnostics.
  * d/p/0013-wayland-Drop-cairo-surfaces-when-withdrawing.patch:
    Add patch from upstream fixing a Wayland client crash if it unmaps
    a window while gdk is processing updates
  * d/p/0014-AM_PATH_GTK_3_0-Use-AC_PATH_TOOL-to-find-pkg-config.patch,
    d/p/0015-m4macros-Fix-underquoting-in-AC_PATH_TOOL.patch:
    Use AC_PATH_TOOL to find pkg-config in the deprecated AM_PATH_GTK_3_0
    macro (Closes: #894069)
  * d/p/0016-imwayland-destroy-objects-only-if-it-matches-our-man.patch:
    Add patch proposed upstream to fix crashes on screen blank in some
    dual-monitor configurations (Closes: #894388)

[dgit import unpatched gtk+3.0 3.22.29-3]

Import gtk+3.0_3.22.29-3.debian.tar.xz

[dgit import tarball gtk+3.0 3.22.29-3 gtk+3.0_3.22.29-3.debian.tar.xz]

Import gtk+3.0_3.22.29.orig.tar.xz

[dgit import orig gtk+3.0_3.22.29.orig.tar.xz]