tree 4e8f0b9b9c947a463e34851efacd204a90bd0306
parent 34bc4af8109b1221305036a528324b8d754b501f
author Wale Ogunwale <ogunwale@google.com> 1494598656 -0700
committer Wale Ogunwale <ogunwale@google.com> 1494598656 -0700

Prevent premature display of starting window.

- When starting an activity, don't tell window manager to make the
windows visible is the keygaurd visibility for the activity is false.
Instead let the activity windows be made visible once the keygaurd
visibility transitions to true.
- Don't send duplicate visibility change request to window manger if we
are not changing state.

Fixes: 34545029
Test: Open a hangouts notification message on the lock-screen
and make sure the starting window doesn't flash.

Change-Id: I745e985766a1af97203e1d22b6443dabdd0c0363