The power manager disables the power button until boot completed occurs. If there are many pending broadcasts in the queue, it may be possible for BOOT_COMPLETED to be delayed for several seconds after boot. To avoid the delay, introduced a new boot phase which is sent to system services immediately when boot completed happens. Bug: 13398280 Change-Id: I1833d2ffb20305009dd76363b43e534034f1d0a2