Merge "DO NOT MERGE Notify keyguard of when power button is pressed." into cw-f-dev am: 2c42db20e4  -s ours am: 812594f573  -s ours am: d210ce63d0
am: 1ba83de49e

Change-Id: I3d173b0b3c01129ba44118d749369c535e783bde