Pass Physical Web metadata through a struct

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.physicalweb;
 
 import android.app.AlarmManager;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
@@ skipping 265 matching lines @@
      *                                    which will receive the list of nearby URL metadata.
      */
     @CalledByNative
     public void getPwCollection(long nativePhysicalWebCollection) {
         List<UrlInfo> nearbyUrlInfos = getUrlInfoList(mNearbyUrls);
         for (UrlInfo urlInfo : nearbyUrlInfos) {
             String requestUrl = urlInfo.getUrl();
             PwsResult pwsResult = mPwsResultMap.get(requestUrl);
             if (pwsResult != null) {
                 nativeAppendMetadataItem(nativePhysicalWebCollection, requestUrl,
-                        urlInfo.getDistance(), (int) urlInfo.getScanTimestamp(), pwsResult.siteUrl,
+                        urlInfo.getDistance(), urlInfo.getScanTimestamp(), pwsResult.siteUrl,
                         pwsResult.iconUrl, pwsResult.title, pwsResult.description,
                         pwsResult.groupId);
             }
         }
     }
 
     /**
      * Forget all stored URLs and clear the notification.
      */
     public void clearAllUrls() {
@@ skipping 518 matching lines @@
                 || mUrlsSortedByTimestamp.contains(url);
     }
 
     @VisibleForTesting
     int getMaxCacheSize() {
         return MAX_CACHE_SIZE;
     }
 
     private native long nativeInit();
     private native void nativeAppendMetadataItem(long nativePhysicalWebCollection,
-            String requestUrl, double distanceEstimate, int scanTimestamp, String siteUrl,
+            String requestUrl, double distanceEstimate, long scanTimestamp, String siteUrl,
             String iconUrl, String title, String description, String groupId);
     private native void nativeOnFound(long nativePhysicalWebDataSourceAndroid, String url);
     private native void nativeOnLost(long nativePhysicalWebDataSourceAndroid, String url);
     private native void nativeOnDistanceChanged(
             long nativePhysicalWebDataSourceAndroid, String url, double distanceChanged);
 }