Update checkKeyIntent

1) Explicityly set  component after target activity check.
2) Update Intent subclass check.

Bug: 360846772
Test: manual
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:2bd443154fd447b6a6792b85a77f47f9edcad8a2)
Merged-In: Iafc1e2260107f7ecc18c90ce12f8987b4fc76350
Change-Id: Iafc1e2260107f7ecc18c90ce12f8987b4fc76350