Merge "SysUI changes for Provider Model"

...b/src/com/android/settingslib/wifi/WifiStatusTracker.java

...ages/SystemUI/res/drawable/ic_qs_no_internet_airplane.xml

...ges/SystemUI/res/drawable/ic_qs_no_internet_available.xml

...s/SystemUI/res/drawable/ic_qs_no_internet_unavailable.xml

packages/SystemUI/res/values/strings.xml

...temUI/src/com/android/systemui/qs/tiles/InternetTile.java

.../SystemUI/src/com/android/systemui/qs/tiles/WifiTile.java

...droid/systemui/statusbar/phone/StatusBarSignalPolicy.java

...om/android/systemui/statusbar/policy/CallbackHandler.java

...oid/systemui/statusbar/policy/MobileSignalController.java

.../android/systemui/statusbar/policy/NetworkController.java

...roid/systemui/statusbar/policy/NetworkControllerImpl.java

...droid/systemui/statusbar/policy/WifiSignalController.java

.../systemui/statusbar/policy/NetworkControllerBaseTest.java

.../systemui/statusbar/policy/NetworkControllerDataTest.java

...ystemui/statusbar/policy/NetworkControllerSignalTest.java

.../systemui/statusbar/policy/NetworkControllerWifiTest.java