Add WearWifiMediatorService to SystemServer.

Bug: 28347905
Change-Id: I4218f908f83eb3a9fe3f75e5d6eaf312c652ba67
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 37a9d5d..bc3c98d 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -157,6 +157,8 @@
             "com.google.android.clockwork.ThermalObserver";
     private static final String WEAR_BLUETOOTH_SERVICE_CLASS =
             "com.google.android.clockwork.bluetooth.WearBluetoothService";
+    private static final String WEAR_WIFI_MEDIATOR_SERVICE_CLASS =
+            "com.google.android.clockwork.wifi.WearWifiMediatorService";
     private static final String WEAR_TIME_SERVICE_CLASS =
             "com.google.android.clockwork.time.WearTimeService";
     private static final String ACCOUNT_SERVICE_CLASS =
@@ -1157,6 +1159,7 @@
 
         if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) {
             mSystemServiceManager.startService(WEAR_BLUETOOTH_SERVICE_CLASS);
+            mSystemServiceManager.startService(WEAR_WIFI_MEDIATOR_SERVICE_CLASS);
           if (!disableNonCoreServices) {
               mSystemServiceManager.startService(WEAR_TIME_SERVICE_CLASS);
           }