Initial work to move downloads to ContentIds

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadSnackbarController.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.download;
 
 import android.app.Activity;
 import android.app.NotificationManager;
 import android.content.Context;
 
@@ skipping 30 matching lines @@
     }
 
     @Override
     public void onAction(Object actionData) {
         if (!(actionData instanceof ActionDataInfo)) {
             DownloadManagerService.openDownloadsPage(mContext);
             return;
         }
         final ActionDataInfo download = (ActionDataInfo) actionData;
         if (download.downloadInfo.isOfflinePage()) {
-            OfflinePageDownloadBridge.openDownloadedPage(download.downloadInfo.getDownloadGuid());
+            OfflinePageDownloadBridge.openDownloadedPage(download.downloadInfo.getContentId());
             return;
         }
         DownloadManagerService manager = DownloadManagerService.getDownloadManagerService(mContext);
         manager.openDownloadedContent(download.downloadInfo, download.systemDownloadId);
         if (download.notificationId != INVALID_NOTIFICATION_ID) {
             NotificationManager notificationManager =
                     (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
             notificationManager.cancel(
                     DownloadNotificationService.NOTIFICATION_NAMESPACE, download.notificationId);
         }
@@ skipping 68 matching lines @@
     }
 
     public SnackbarManager getSnackbarManager() {
         Activity activity = getActivity();
         if (activity != null && activity instanceof SnackbarManager.SnackbarManageable) {
             return ((SnackbarManager.SnackbarManageable) activity).getSnackbarManager();
         }
         return null;
     }
 }