Prettier "last synced" times on the recent tabs page.

chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsRowAdapter.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.ntp;
 
 import android.app.Activity;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.drawable.BitmapDrawable;
@@ skipping 14 matching lines @@
 import org.chromium.chrome.browser.favicon.FaviconHelper.FaviconImageCallback;
 import org.chromium.chrome.browser.ntp.ForeignSessionHelper.ForeignSession;
 import org.chromium.chrome.browser.ntp.ForeignSessionHelper.ForeignSessionTab;
 import org.chromium.chrome.browser.ntp.ForeignSessionHelper.ForeignSessionWindow;
 import org.chromium.chrome.browser.ntp.RecentlyClosedBridge.RecentlyClosedTab;
 import org.chromium.ui.WindowOpenDisposition;
 import org.chromium.ui.base.DeviceFormFactor;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.concurrent.TimeUnit;
 
 /**
  * Row adapter for presenting recently closed tabs, synced tabs from other devices, the sync or
  * sign in promo, and currently open tabs (only in document mode) in a grouped list view.
  */
 public class RecentTabsRowAdapter extends BaseExpandableListAdapter {
     private static final int MAX_NUM_FAVICONS_TO_CACHE = 256;
 
     private enum ChildType {
         NONE, DEFAULT_CONTENT, SYNC_PROMO
     }
 
     private enum GroupType {
         CONTENT, VISIBLE_SEPARATOR, INVISIBLE_SEPARATOR
     }
 
     private final Activity mActivity;
     private final ArrayList<Group> mGroups;
     private final Drawable mDefaultFavicon;
     private final RecentTabsManager mRecentTabsManager;
     private final RecentlyClosedTabsGroup mRecentlyClosedTabsGroup = new RecentlyClosedTabsGroup();
     private final SeparatorGroup mVisibleSeparatorGroup = new SeparatorGroup(true);
     private final SeparatorGroup mInvisibleSeparatorGroup = new SeparatorGroup(false);
-    private final long mInitializationTimestamp;  // Seconds since Unix epoch.
     private final FaviconCache mFaviconCache;
     private final int mFaviconSize;
 
     /**
      * A generic group of objects to be shown in the RecentTabsRowAdapter, such as the list of
      * recently closed tabs.
      */
     abstract class Group {
         /**
          * @return The type of group: GroupType.CONTENT or GroupType.SEPARATOR.
@@ skipping 61 matching lines @@
          * @param parent The parent view group.
          *
          * @return The view corresponding to the group.
          */
         public View getGroupView(boolean isExpanded, View convertView, ViewGroup parent) {
             assert convertView == null || convertView instanceof RecentTabsGroupView;
             RecentTabsGroupView groupView = (RecentTabsGroupView) convertView;
             if (groupView == null) {
                 groupView = (RecentTabsGroupView) LayoutInflater.from(mActivity).inflate(
                         R.layout.recent_tabs_group_item, parent, false);
-                groupView.initialize(mInitializationTimestamp);
             }
             configureGroupView(groupView, isExpanded);
             return groupView;
         }
 
         /**
          * Configures an RecentTabsGroupView to display the header of this group.
          * @param groupView The RecentTabsGroupView to configure.
          * @param isExpanded Whether the view is currently expanded.
          */
@@ skipping 503 matching lines @@
      * Creates an RecentTabsRowAdapter used to populate an ExpandableList with other
      * devices and foreign tab cells.
      *
      * @param activity The Android activity this adapter will work in.
      * @param recentTabsManager The RecentTabsManager that will act as the data source.
      */
     public RecentTabsRowAdapter(Activity activity, RecentTabsManager recentTabsManager) {
         mActivity = activity;
         mRecentTabsManager = recentTabsManager;
         mGroups = new ArrayList<Group>();
-        mInitializationTimestamp =
-            TimeUnit.SECONDS.convert(System.currentTimeMillis(), TimeUnit.MILLISECONDS);
         mFaviconCache = buildFaviconCache(MAX_NUM_FAVICONS_TO_CACHE);
 
         Resources resources = activity.getResources();
         mDefaultFavicon = ApiCompatibilityUtils.getDrawable(resources, R.drawable.default_favicon);
         mFaviconSize = resources.getDimensionPixelSize(R.dimen.default_favicon_size);
     }
 
     private static FaviconCache buildFaviconCache(int size) {
         return new FaviconCache(size);
     }
@@ skipping 162 matching lines @@
     @Override
     public int getChildType(int groupPosition, int childPosition) {
         return mGroups.get(groupPosition).getChildType().ordinal();
     }
 
     @Override
     public int getChildTypeCount() {
         return ChildType.values().length;
     }
 }