856edebad7
When DND is on, expanded panel shows the current time condition, or time remaining. The last time bucket selected is remembered as the default option for the next time. Move the server-side countdown helper into a proper condition provider, but register it in-process as a system provider. Move common countdown condition parsing into ZenModeConfig to reuse from system components. Keep the manual exit condition around in zen mode config and add plumbing for getting / listening to the controller. Keep the last QS detail panel around instead of recreating it every time. Fix the time condition's plus and minus button enabling logic, and enhance the click handler to deal properly with the next or previous bucket. Bug:15344758 Change-Id: Ie7018a1c20e20f6d7e5f9e7874188374e6f8e2ab