QS: Make BT detail be more consistent with Settings

 - Show turning on as on
 - Disable switch when in a turning on/off state

Change-Id: I55f977808d1b881f6dc27192dcc2e907b0576447
Fixes: 29237638
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/BluetoothController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/BluetoothController.java
index e7e2ac2..08675c4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/BluetoothController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/BluetoothController.java
@@ -26,6 +26,9 @@
 
     boolean isBluetoothSupported();
     boolean isBluetoothEnabled();
+
+    int getBluetoothState();
+
     boolean isBluetoothConnected();
     boolean isBluetoothConnecting();
     String getLastDeviceName();