Add TYPE_BLUETOOTH network interface for reverse tethering.

Change-Id: I2aa61ce15f57aea9e8fd3a4cb56799c8bc51e998
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 3e2eac2..e7e4302 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -16,8 +16,7 @@
 
 package com.android.server;
 
-import android.app.Notification;
-import android.app.NotificationManager;
+import android.bluetooth.BluetoothTetheringDataTracker;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
@@ -26,9 +25,9 @@
 import android.net.ConnectivityManager;
 import android.net.DummyDataStateTracker;
 import android.net.IConnectivityManager;
+import android.net.LinkProperties;
 import android.net.MobileDataStateTracker;
 import android.net.NetworkInfo;
-import android.net.LinkProperties;
 import android.net.NetworkStateTracker;
 import android.net.NetworkUtils;
 import android.net.Proxy;
@@ -50,7 +49,6 @@
 import android.util.Slog;
 
 import com.android.internal.telephony.Phone;
-
 import com.android.server.connectivity.Tethering;
 
 import java.io.FileDescriptor;
@@ -58,7 +56,6 @@
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.net.InetAddress;
-import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -412,6 +409,10 @@
                         mNetAttributes[netType].mName);
                 mNetTrackers[netType].startMonitoring(context, mHandler);
                 break;
+            case ConnectivityManager.TYPE_BLUETOOTH:
+                mNetTrackers[netType] = BluetoothTetheringDataTracker.getInstance();
+                mNetTrackers[netType].startMonitoring(context, mHandler);
+                break;
             default:
                 loge("Trying to create a DataStateTracker for an unknown radio type " +
                         mNetAttributes[netType].mRadio);