tree 741730eb50c8de3e8ae68337a9e53bf4203ded02
parent 879592d89a78383a9e3cd29d53357f34337e5f04
author Craig Mautner <cmautner@google.com> 1392237437 -0800
committer Craig Mautner <cmautner@google.com> 1392237437 -0800

Don't add windows from exiting app tokens twice.

If an apptoken's removal has been delayed then it will be in both
mExitingAppTokens and the stack's tasks. When rebuilding the windows
the windows from that apptoken will get added twice. This change
skips adding those windows from apptokens that have already been
added from mExitingAppTokens.

Change-Id: I55f94b7dbef36aeacb390b91fbe82426eaac5458