tree c84b1a6a68398fd9bad47fe7912486ffb1e4a5d2
parent dfe7e7e63fa80a8a9050ea47f69a340e2f7e342d
author Dan Stoza <stoza@google.com> 1430523775 -0700
committer Dan Stoza <stoza@google.com> 1430524115 -0700

libgui: Clear frame number while freeing slot

Clears the frame number of a slot when it is freed, since it is used
to determine if a released buffer is stale.

Bug: 20445852
Change-Id: I02415e7b25a1eafe7414d6eb1cedf62ac5543cd9
(cherry picked from commit 52937cd9a543fe66696c38ae50ec141aa70ec1e4)