core: add support for translucent volume panel

Add support for display the volume panel in translucent mode

Patchset 4: Make it depends to high-end graphics flag

Change-Id: I4f21a6cc88282789072a0e71ae696b754a5e083e
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
QS: Fix up Wifi Display tile for screencasting and reenable it

Replace the Wifi Display code with MediaRouter/RemoteDisplay observers,
and turn let the controller manage the tile again

Change-Id: Iaf5c509ae078b9305d1d314ec76d44362beb025e
QS: Rename WiFiDisplay to RemoteDisplay

Change-Id: Iae8537482bc2c2a1beca71336a569bc5d4c16df5
Show live wallpapers in the recents view on high-end devices

Change-Id: Iefbf4f292b6a9bfdb516f154cc2976db2ba86cde
Revert "Fix stencil buffer bug."

This reverts commit ea327b48b495168872c1c758c7c744890496650f.

Change-Id: I8e4b8b4c6cf48930907cdb52c95135dd6f338af2
Display: Dirty region propagation

Pass Dirty region values from HW renderer to Surface Texture.

Change-Id: Ibd121ed398a1319d3daf26f9fd39a03323bba666