tree 420c46fbb02d3712d67ce9e4145fca2599490183
parent b2117bbc3aa853cd7c3db3878be52e2137f7f3df
author lumark <lumark@google.com> 1539931095 +0800
committer lumark <lumark@google.com> 1542101215 +0800

Show IME correctly when top-most display focus changed.

In previous design, the IME focus is changed when receiving
window focus change from ViewRootImpl.

For Multi-Display concept, it should be needed to aware the top
display focus changed in different displays but both are already
had the focused window without change case.

Sending REPORT_FOCUS_CHANGE when top display focus changed for
ViewRootImpl, let IMM can re-focus IME window on right display.

Bug: 117491872
Test: atest ActivityManagerMultiDisplayTests
Test: atest FrameworksServicesTests:DisplayContentTests

Change-Id: Ia46738a5da6dbc334bf937b0f6656a57523c28a7