[DL]: Make sure to notify observers on all frames when lifecycle happens.

This patch ensures that we notify local frames that have display locks
when lifecycle advances. Otherwise, those frame never get the notifications
and locks seem to "freeze" on acquire or commit.

R=chrishtr@chromium.org

Bug: 882663
Change-Id: I4269364ea5095e9f5eb0f4b2239105be74a3684b
Reviewed-on: https://chromium-review.googlesource.com/c/1474683
Commit-Queue: vmpstr <vmpstr@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#632651}
3 files changed