tree 0bbaa479dbb4c9b9f8b49b9fe7e7344d7f0581cc
parent f89bff9ed875c1e3ad8e682e651c5994b246cc53
author Jeff Brown <jeffbrown@google.com> 1405794827 -0700
committer Jeff Brown <jeffbrown@google.com> 1405991906 +0000

Allow dreams to control screen state and brightness.

Added setDozeScreenState() and setDozeScreenBrightness() methods to
DreamService.  The values specified here only take effect once
startDozing is called and can be changed while dozing.

This required some significant rework of the display power controller
but the result seems quite nice and better represents the policy
we want to apply.

Changed the test dream a little bit to make it flash the screen
every minute using the new functions.

Bug: 15903322
Change-Id: I83bcc34503f1b87727d2b2b3c0ef08507f9f0808