tree 947490d7fc78fe0897dee344f972107fd3423166
parent 1d41d5d82c0654313b33d45c7b8943eeba13469e
author Dan Stoza <stoza@google.com> 1391559756 -0800
committer Dan Stoza <stoza@google.com> 1391561214 -0800

Fix virtual display nesting

This fixes the cycling rendering loop caused by nesting virtual
displays by preventing them from recomposing if their contents
haven't changed.

Bug: 12101046
Change-Id: I600365c0fd5d3ad93e04295d26cf9de177ffc79b