We only prevent to show soft input in
IMMS#startInputUncheckedLocked when
DISPLAY_IME_POLICY_HIDE is set.
If a display with DISPLAY_IME_POLICY_HIDE,
we should hide the soft input anyway.
Bug: 199991634
Test: atest CtsInputMethodTestCases
Test: Verify as following steps:
1) adb shell wm size 800x1280
2) adb shell wm density 213
3) atest MultiDisplaySystemDecorationTests#\
testDisplayPolicyImeHideImeNoSystemDecorations
Merged-In: I3ab03667c28ec5beb6c3332aceaae4a63cd7309a
Change-Id: I3ab03667c28ec5beb6c3332aceaae4a63cd7309a
(cherry picked from commit d41ac0605c)
b9e5fc383d