SystemUI: unbreak RecentsPanel with translucent decors.

Change-Id: Ibcc4f5fc11109c0f2c149e66b7531e8c9ea79ae1

Conflicts:
	packages/SystemUI/res/layout-land/status_bar_recent_panel.xml
	packages/SystemUI/res/layout/status_bar_recent_panel.xml
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java