Don't show the remaining time for offline page downloads

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.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.ActivityManager;
 import android.app.DownloadManager;
 import android.app.Notification;
 import android.app.NotificationManager;
@@ skipping 257 matching lines @@
                 ? R.string.download_notification_pending : R.string.download_started);
         NotificationCompat.Builder builder = buildNotification(
                 android.R.drawable.stat_sys_download, fileName, contentText);
         boolean indeterminate = (percentage == INVALID_DOWNLOAD_PERCENTAGE) || isDownloadPending;
         builder.setOngoing(true);
         // Avoid moving animations while download is not downloading.
         if (!isDownloadPending) {
             builder.setProgress(100, percentage, indeterminate);
         }
         builder.setPriority(Notification.PRIORITY_HIGH);
-        if (!indeterminate) {
+        if (!indeterminate && !isOfflinePage) {
             String duration = formatRemainingTime(mContext, timeRemainingInMillis);
             if (Build.VERSION.CODENAME.equals("N")
                     || Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {
                 builder.setSubText(duration);
             } else {
                 builder.setContentInfo(duration);
             }
         }
         int notificationId = getNotificationId(downloadGuid);
         int itemType = isOfflinePage ? DownloadSharedPreferenceEntry.ITEM_TYPE_OFFLINE_PAGE
@@ skipping 594 matching lines @@
             return context.getString(R.string.remaining_duration_minutes, minutes);
         } else if (minutes > 0) {
             return context.getString(R.string.remaining_duration_one_minute);
         } else if (seconds == 1) {
             return context.getString(R.string.remaining_duration_one_second);
         } else {
             return context.getString(R.string.remaining_duration_seconds, seconds);
         }
     }
 }