* 12to11-test.xml (test_manager) <activated>: Add
activator_surface parameter.
* compositor.h (enum _ClientDataType): New XdgActivationData
type.
(struct _RoleFuncs, struct _XdgRoleImplementationFuncs): Pass
activator surface in `activate'.
* seat.c (struct _Seat): New field for the serial of the last
entry event.
(SendKeyboardEnter, XLSeatCheckActivationSerial): Add
workarounds for Firefox.
* surface.c (HandleSurfaceDestroy): Allow client data
free_functions to be NULL.
* test.c (Activate): Accept and send activator surface.
* xdg_activation.c (struct _XdgActivationToken): New fields for
the surface and destroy callback.
(HandleSurfaceDestroyed): New function.
(SetSurface): Really record the activator surface.
(GetIdForSurface): New function.
(Commit): Include activator surface ID.
(HandleResourceDestroy): Destroy activator surface.
(GetSurfaceForId): New function.
(Activate): Pass activator surface whenever specified.
* xdg_surface.c (Activate):
* xdg_toplevel.c (Activate): Adjust accordingly.
* tests/xdg_activation_test.c (check_activation_with_serial):
Check activator surface as well.
(test_single_step): Fix damage rect for dummy buffer.
(handle_test_surface_activated): Record the activator surface.
