tree 910b3c14fd14b5bf089639f9670cda841ea185ee
parent 08ca2e3a7593ced4967c56709a1fe675408d42dc
author Chris Craik <ccraik@google.com> 1462567148 -0700
committer Chris Craik <ccraik@google.com> 1462572687 -0700

Reset transparent region when saving a surface

Fixes: 28432088

Ensure a transparent region on a saved surface is reset for future use,
since the surface should be like-new if used again.

This prevents an issue where the region - used to signal a portion of
content doesn't need to be composited - is persisted when a saved
surface is reused. The client assumes it's new and in default
state (composite everything), but the window is clipped when composited.

Change-Id: Icf2ec94c735679d715aded58de7eab12e9c43367