PhoneWindowManager: fix navbar behavior in expanded mode after 4.4.2 merge.

Change-Id: I00f814db6c3800b8eb1cf20004ecdfb8d1ee7036
[1/2] base: allow disabling call end sound

Change-Id: I4e5942de5c61dab9ee59cbf3b6599af32edb1d47

Conflicts:
	core/java/android/provider/Settings.java
[1/3] fb: Change density on the fly

Change-Id: I7ee16d32ee882fea22367f49f69f4da744f3aa45

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java