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

Change-Id: Iefbf4f292b6a9bfdb516f154cc2976db2ba86cde
Impressive fix : Left handed navbar during landscape mode

from http://review.cyanogenmod.org/#/c/57454
when you enable expanded desktop and left handed navbar.
you need to swipe from right edge to show navbar.
but this patch will change to swipe from left edge to show navbar.

Patchset2 : change tab to whitespace
Patchset3 : remove \r after @override in PhoneWindowManager.java

Change-Id: I65a15c6f5e662e429a818484de6b71e81c7ae713