Listen to Input device connection state intents.

Change-Id: I99addef820438c9c34bfccf2877578b06e14a00c
diff --git a/src/com/android/settings/bluetooth/BluetoothEventRedirector.java b/src/com/android/settings/bluetooth/BluetoothEventRedirector.java
index 757e1a2..3023daf 100644
--- a/src/com/android/settings/bluetooth/BluetoothEventRedirector.java
+++ b/src/com/android/settings/bluetooth/BluetoothEventRedirector.java
@@ -202,6 +202,7 @@
 
         // Fine-grained state broadcasts
         filter.addAction(BluetoothPan.ACTION_PAN_STATE_CHANGED);
+        filter.addAction(BluetoothInputDevice.ACTION_INPUT_DEVICE_STATE_CHANGED);
         filter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED);
         filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
         filter.addAction(BluetoothDevice.ACTION_CLASS_CHANGED);