Show live wallpapers in the recents view on high-end devices

Change-Id: Iefbf4f292b6a9bfdb516f154cc2976db2ba86cde
Display: Dirty region propagation

Pass Dirty region values from HW renderer to Surface Texture.

Change-Id: Ibd121ed398a1319d3daf26f9fd39a03323bba666
frameworks: Hope systemui improved battery life

See this:
http://image.thinkingbridge.org/keyguard.png

Remove KeyguardTestActivity

Change-Id: I3395d64abba87d5002bbc08af62c45dcc9e75015
Missing break in switch statement

Change-Id: I462c0c5fec96a850032266b04419ec409ad02174