offline_items_collection : Added helper class to determine progress

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadItem.java

 // Copyright 2016 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 org.chromium.base.annotations.CalledByNative;
 import org.chromium.components.offline_items_collection.ContentId;
+import org.chromium.components.offline_items_collection.OfflineItem.Progress;
 
 /**
  * A generic class representing a download item. The item can be either downloaded through the
  * Android DownloadManager, or through Chrome's network stack.
  *
  * This represents the native DownloadItem at a specific point in time -- the native side
  * DownloadManager must be queried for the correct status.
  */
 public class DownloadItem {
-    public static final int INDETERMINATE_DOWNLOAD_PERCENTAGE = -1;
     static final long INVALID_DOWNLOAD_ID = -1L;
 
     private final ContentId mContentId = new ContentId();
     private boolean mUseAndroidDownloadManager;
     private DownloadInfo mDownloadInfo;
     private long mDownloadId = INVALID_DOWNLOAD_ID;
     private long mStartTime;
     private boolean mHasBeenExternallyRemoved;
 
     public DownloadItem(boolean useAndroidDownloadManager, DownloadInfo info) {
@@ skipping 107 matching lines @@
         DownloadItem downloadItem = new DownloadItem(false, downloadInfo);
         downloadItem.setStartTime(startTimestamp);
         downloadItem.setHasBeenExternallyRemoved(hasBeenExternallyRemoved);
         return downloadItem;
     }
 
     /**
      * @return Whether or not the download has an indeterminate percentage.
      */
     public boolean isIndeterminate() {
-        return getDownloadInfo().getPercentCompleted() == INDETERMINATE_DOWNLOAD_PERCENTAGE;
+        Progress progress = getDownloadInfo().getProgress();
+        return progress == null || progress.isIndeterminate();
     }
 }