Refactor Nearby Message listener

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyMessageIntentService.java

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyMessageIntentService.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyMessageIntentService.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyMessageIntentService.java
index 0371e6eae71a1c4f425fc14759f71be54544f547..23651eaae25e89942e676c2d64a19f8f20b59ab3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyMessageIntentService.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyMessageIntentService.java
@@ -8,30 +8,15 @@ import android.app.IntentService;
 import android.content.Intent;
 
 import com.google.android.gms.nearby.Nearby;
-import com.google.android.gms.nearby.messages.Message;
 import com.google.android.gms.nearby.messages.MessageListener;
 
 /**
  * Service that handles intents from Nearby.
  */
 public class NearbyMessageIntentService extends IntentService {
-    private static final MessageListener MESSAGE_LISTENER = new MessageListener() {
-        @Override
-        public void onFound(Message message) {
-            String url = PhysicalWebBleClient.getInstance().getUrlFromMessage(message);
-            if (url != null) {
-                UrlManager.getInstance().addUrl(new UrlInfo(url));
-            }
-        }
+    private static final MessageListener MESSAGE_LISTENER =
+            PhysicalWebBleClient.getInstance().createBackgroundMessageListener();
 
-        @Override
-        public void onLost(Message message) {
-            String url = PhysicalWebBleClient.getInstance().getUrlFromMessage(message);
-            if (url != null) {
-                UrlManager.getInstance().removeUrl(new UrlInfo(url));
-            }
-        }
-    };
 
     public NearbyMessageIntentService() {
         super(NearbyMessageIntentService.class.getSimpleName());