Make canBeImeTarget be compatible with legacy behavior

And let PerDisplay can adjust animation parameters while the insets
source control is changed during animation.

Fix: 151759336
Test: atest WindowStateTests
Change-Id: Ic2a308e6b7ec39b4b8645751e31addd26ddf3735
(cherry picked from commit 00b9d6ed3c4982026522c4396653b8237e5447a8)
4 files changed