Previously, the parent display impl would be destroyed before the surface
impls.  It is useful to call helper functions in the parent display during
surface destruction.

BUG=540829

Change-Id: I0884826d2e360319da896f049d46bfc01a2481a0
Reviewed-on: https://chromium-review.googlesource.com/316801Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>