[2/2] OmniGears: Add back navigation bar customization

Change-Id: I4321a8337627f770e20a28361f2b1e6f2958e936
Merge "[2/2] OmniGears: Add back navigation bar customization" into android-4.4
Revert "[2/2] OmniGears: Add back navigation bar customization"

This reverts commit 4a08a133674da7986ed163e7ba90d1d678ed63bb.
Merge branch 'head' into kitkat