SystemUI: Fix crash during notification/theme change

Fixes crashing that could occur when a notification is created
during a theme change. Entries were attempting to be added
to views which did not have a layout pass yet, causing it to fail.

When a theme change occurs, the fix is to halt the ticker and command queue
until a layout occurs.

BUGDUMP-151925

Change-Id: Ic19d26178df673a1d52981a8617415e6fbcb219d
Navbar Custom Glow Time (1/2)

Fix

- Update

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java

Change-Id: I823228caf9f6c86d376169bae621868306e8e245