Don't warmup the app list if it hasn't been used in the past 28 days. [Win]

chrome/browser/ui/app_list/app_list_service_impl.h

 // Copyright 2013 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_UI_APP_LIST_APP_LIST_SERVICE_IMPL_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 27 matching lines @@
   AppListServiceImpl(const base::CommandLine& command_line,
                      PrefService* local_state,
                      scoped_ptr<ProfileStore> profile_store);
 
   // Lazily create the Chrome AppListViewDelegate and ensure it is set to the
   // given |profile|.
   AppListViewDelegate* GetViewDelegate(Profile* profile);
 
   void RecordAppListLaunch();
   static void RecordAppListAppLaunch();
+  static void RecordAppListLastLaunch();
 
   // AppListService overrides:
   void SetAppListNextPaintCallback(void (*callback)()) override;
   void Init(Profile* initial_profile) override;
   base::FilePath GetProfilePath(const base::FilePath& user_data_dir) override;
   void SetProfilePath(const base::FilePath& profile_path) override;
   void Show() override;
   void ShowForVoiceSearch(
       Profile* profile,
       const scoped_refptr<content::SpeechRecognitionSessionPreamble>& preamble)
@@ skipping 44 matching lines @@
   PrefService* local_state_;
   scoped_ptr<ProfileLoader> profile_loader_;
   scoped_ptr<AppListViewDelegate> view_delegate_;
 
   base::WeakPtrFactory<AppListServiceImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListServiceImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_IMPL_H_