tree adf6e0d1cbd9c0496fa8caad1a9d3f0ecfca4e09
parent 99930d45c40f2d79a7633d9dd9f8478d22307848
author Gloria Wang <gwang@google.com> 1312928974 -0700
committer Gloria Wang <gwang@google.com> 1312929090 -0700

To support for switching from a non-null surface/ surface texture to
a null one, and vice versa.
Fix for bug 5137445.

Change-Id: Ifca2997f8ad27a843abbdaa7e89a56329bc40fde