Factor Google Now welcome notifications out of DesktopNotificationService.

chrome/browser/notifications/desktop_notification_service.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_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_
 #define CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/prefs/pref_member.h"
 #include "base/scoped_observer.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/content_settings/permission_context_base.h"
-#include "chrome/browser/notifications/extension_welcome_notification.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "third_party/WebKit/public/platform/WebNotificationPermission.h"
 #include "third_party/WebKit/public/web/WebTextDirection.h"
 #include "ui/message_center/notifier_settings.h"
 #include "url/gurl.h"
 
 #if defined(ENABLE_EXTENSIONS)
 #include "extensions/browser/extension_registry_observer.h"
 #endif
@@ skipping 69 matching lines @@
       base::Closure* cancel_callback);
 
   // Returns true if the notifier with |notifier_id| is allowed to send
   // notifications.
   bool IsNotifierEnabled(const message_center::NotifierId& notifier_id);
 
   // Updates the availability of the notifier.
   void SetNotifierEnabled(const message_center::NotifierId& notifier_id,
                           bool enabled);
 
-  // Adds in a the welcome notification if required for components built
-  // into Chrome that show notifications like Chrome Now.
-  void ShowWelcomeNotificationIfNecessary(const Notification& notification);
-
  private:
   // Returns a display name for an origin in the process id, to be used in
   // permission infobar or on the frame of the notification toast.  Different
   // from the origin itself when dealing with extensions.
   base::string16 DisplayNameForOriginInProcessId(const GURL& origin,
                                                  int process_id);
 
   // Called when the string list pref has been changed.
   void OnStringListPrefChanged(
       const char* pref_name, std::set<std::string>* ids_field);
@@ skipping 39 matching lines @@
   // On-memory data for the availability of system_component.
   std::set<std::string> disabled_system_component_ids_;
 
 #if defined(ENABLE_EXTENSIONS)
   // An observer to listen when extension is uninstalled.
   ScopedObserver<extensions::ExtensionRegistry,
                  extensions::ExtensionRegistryObserver>
       extension_registry_observer_;
 #endif
 
-  // Welcome Notification
-  scoped_ptr<ExtensionWelcomeNotification> chrome_now_welcome_notification_;
-
   base::WeakPtrFactory<DesktopNotificationService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNotificationService);
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_