tree ff59f740102a6049cfc9207536d262d94c9ac0b7
parent 5148582ef20dba1b15fcb9394741c282935e71d3
author Wale Ogunwale <ogunwale@google.com> 1529076367 -0700
committer Wale Ogunwale <ogunwale@google.com> 1529076367 -0700

Cancel Pip animation if stack is already removed

It is possible for the pinned stack to be removed before the system has
a chance to run the scheduled bounds animation on it. In this case we
should just cancel the animation.
Also fixed:
- Issue where we are synchronizing on the wrong object in
PinnedActivityStack.updatePictureInPictureModeForPinnedStackAnimation
- Issue where the enterPipRunnable in
ActivityTaskManagerService.enterPictureInPictureMode wasn't synchronized

Change-Id: I9717ac4b5849eafa6332fb0043310a0e8387a05f
Fixes: 110255768
Test: atest ActivityManagerActivityVisibilityTests#testHomeVisibleOnActivityTaskPinned