Make display frame compatible

The display frame is used to limit the windows boundary. The frame is
the same as the parent frame in most cases if the window is not
attched. However, if a window doesn't have any layout related
window/sysui flags and the soft input mode is not ADJUST_RESIZE, the
display frame doesn't need to be inset by IME (but the parent frame
does).

Fix: 163435784
Test: atest ViewRootImplTest DisplayPolicyLayoutTests
Merged-In: Ia61933120027642d1f0e0a490546071ca2b6c853
Change-Id: Ia61933120027642d1f0e0a490546071ca2b6c853