tree e59861d3121c827a68dd3c8ca801b31337bf2da5
parent 26f894d2785b7e0ada5f86f45e7ed6f055829b46
author Yuli Huang <yuli@google.com> 1318339402 +0800
committer Yuli Huang <yuli@google.com> 1318410147 +0800

Fix b/5392171 and b/5389281.

1. Fix b/5392171 by moving effect context creation into Filter to make
sure it'd be created when needed.
2. Revise the fix for b/5389281 by clearing surface background even
there's no photo.

Change-Id: I212a552291c7df28b75a909bf6560634ba061e9f