Remove delay for the first JumpList top site sync in one session

chrome/browser/win/jumplist.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_WIN_JUMPLIST_H_
 #define CHROME_BROWSER_WIN_JUMPLIST_H_
 
 #include <stddef.h>
 
 #include <list>
@@ skipping 106 matching lines @@
 
   // Callback for changes to the incognito mode availability pref.
   void OnIncognitoAvailabilityChanged();
 
   // Initializes the one-shot timer to update the JumpList in a while. If there
   // is already a request queued then cancel it and post the new request. This
   // ensures that JumpList update won't happen until there has been a brief
   // quiet period, thus avoiding update storms.
   void InitializeTimerForUpdate();
 
-  // Called on a timer after requests storms have subsided. Calls APIs
-  // ProcessTopSitesNotification and ProcessTabRestoreNotification on
-  // demand to do the actual work.
-  void OnDelayTimer();
+  // Processes update notifications. Calls APIs ProcessTopSitesNotification and
+  // ProcessTabRestoreNotification on demand to do the actual work.
+  void ProcessNotifications();
 
   // Processes notifications from TopSites service.
   void ProcessTopSitesNotification();
 
   // Processes notifications from TabRestore service.
   void ProcessTabRestoreServiceNotification();
 
   // Callback for TopSites that notifies when |data|, the "Most Visited" list,
   // is available. This function updates the ShellLinkItemList objects and
   // begins the process of fetching favicons for the URLs.
@@ skipping 134 matching lines @@
   // A flag indicating if "Recently Closed" category should be updated.
   bool recently_closed_should_update_ = false;
 
   // A flag indicating if there's a JumpList update task already posted or
   // currently running.
   bool update_in_progress_ = false;
 
   // A flag indicating if a session has at least one tab closed.
   bool has_tab_closed_ = false;
 
+  // A flag indicating if a session has at least one top sites sync.
+  bool has_topsites_sync = false;
+
   // Number of updates to skip to alleviate the machine when a previous update
   // was too slow. Updates will be resumed when this reaches 0 again.
   int updates_to_skip_ = 0;
 
   // Id of last favicon task. It's used to cancel current task if a new one
   // comes in before it finishes.
   base::CancelableTaskTracker::TaskId task_id_ =
       base::CancelableTaskTracker::kBadTaskId;
 
   // A task runner running tasks to update the JumpList.
   scoped_refptr<base::SingleThreadTaskRunner> update_jumplist_task_runner_;
 
   // A task runner running tasks to delete the JumpListIcons and
   // JumpListIconsOld folders.
   scoped_refptr<base::SequencedTaskRunner> delete_jumplisticons_task_runner_;
 
   SEQUENCE_CHECKER(sequence_checker_);
 
   // For callbacks may run after destruction.
   base::WeakPtrFactory<JumpList> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(JumpList);
 };
 
 #endif  // CHROME_BROWSER_WIN_JUMPLIST_H_