tree 8fc62120bf95cc305e808f9f875ba88d6f135098
parent c5c5a14c06de249d8e0445fd24699e1d9aa04549
author Colin Cross <ccross@android.com> 1342140994 -0700
committer Colin Cross <ccross@android.com> 1342219730 -0700

surfaceflinger: call into hardware composer to blank screen

Call into the new HWC blank operation to blank or unblank the screen.
Legacy systems may have already blanked the screen via early suspend,
and can choose to not implement the blank operation in their hardware
composer implementation.

Change-Id: Ib403c8c0e36367a2cfef3e1d124872fcfeb9e7cb