Revert "Revert "Moving insets animation to StateHandler so that ..."
Revert submission 13823490-revert-13810332-insetcontroller-CLXXLCZAUM
Reason for revert: Fixed original error in ag/13823726
Reverted Changes:
Ie19a3fd90:Revert "Moving insets animation to StateHandler so...
I4eb33772a:Revert "Removing insets controller animation as pa...
Change-Id: I7fb395c51ea99081913bc99515257e98c0a32754