Switch to listening for USER_LIFECYCLE_EVENT_TYPE_UNLOCKED

Bug: 153115826
Test: Manual
Change-Id: I19f937a929a9e4c82cc6774ae6302041782b49e1
diff --git a/service/src/com/android/car/CarMediaService.java b/service/src/com/android/car/CarMediaService.java
index 7e02b9e..c35578b 100644
--- a/service/src/com/android/car/CarMediaService.java
+++ b/service/src/com/android/car/CarMediaService.java
@@ -210,10 +210,14 @@
         if (Log.isLoggable(CarLog.TAG_MEDIA, Log.DEBUG)) {
             Log.d(CarLog.TAG_MEDIA, "CarMediaService.onEvent(" + event + ")");
         }
-        if (CarUserManager.USER_LIFECYCLE_EVENT_TYPE_SWITCHING == event.getEventType()) {
-            maybeInitUser(event.getUserId());
-        } else if (CarUserManager.USER_LIFECYCLE_EVENT_TYPE_UNLOCKING == event.getEventType()) {
-            onUserUnlock(event.getUserId());
+
+        switch (event.getEventType()) {
+            case CarUserManager.USER_LIFECYCLE_EVENT_TYPE_SWITCHING:
+                maybeInitUser(event.getUserId());
+                break;
+            case CarUserManager.USER_LIFECYCLE_EVENT_TYPE_UNLOCKED:
+                onUserUnlock(event.getUserId());
+                break;
         }
     };