Attempt to fix keyguard missing bug

This attempts to fix a bug where the device sometimes shows the home screen
before keyguard starts.  The fix ensures we show the scrim when KeyguardServiceDelegate
is created and stays there until KeyguardService connects.

Fixes bug 18468369

Change-Id: Ib560889663c0c4dd84135d949fefc2b9819ce9a1
1 file changed