Revert of Show message center on lock screen

ui/message_center/views/message_center_view.h

 // Copyright (c) 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 UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_
 #define UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
@@ skipping 55 matching lines @@
   void Layout() override;
   gfx::Size GetPreferredSize() const override;
   int GetHeightForWidth(int width) const override;
   bool OnMouseWheel(const ui::MouseWheelEvent& event) override;
   void OnMouseExited(const ui::MouseEvent& event) override;
 
   // Overridden from MessageCenterObserver:
   void OnNotificationAdded(const std::string& id) override;
   void OnNotificationRemoved(const std::string& id, bool by_user) override;
   void OnNotificationUpdated(const std::string& id) override;
-  void OnLockedStateChanged(bool locked) override;
 
   // Overridden from MessageCenterController:
   void ClickOnNotification(const std::string& notification_id) override;
   void RemoveNotification(const std::string& notification_id,
                           bool by_user) override;
   std::unique_ptr<ui::MenuModel> CreateMenuModel(
       const NotifierId& notifier_id,
       const base::string16& display_source) override;
   bool HasClickedListener(const std::string& notification_id) override;
   void ClickOnNotificationButton(const std::string& notification_id,
                                  int button_index) override;
   void ClickOnSettingsButton(const std::string& notification_id) override;
 
   // Overridden from gfx::AnimationDelegate:
   void AnimationEnded(const gfx::Animation* animation) override;
   void AnimationProgressed(const gfx::Animation* animation) override;
   void AnimationCanceled(const gfx::Animation* animation) override;
 
  private:
   friend class MessageCenterViewTest;
 
   enum class Mode { NOTIFICATIONS, SETTINGS, BUTTONS_ONLY };
 
-  static bool disable_animation_for_testing;
-
   void AddNotificationAt(const Notification& notification, int index);
   base::string16 GetButtonBarTitle() const;
   void Update(bool animate);
   void SetVisibilityMode(Mode mode, bool animate);
   void UpdateButtonBarStatus();
   void SetNotificationViewForTest(MessageView* view);
 
   MessageCenter* message_center_;  // Weak reference.
   MessageCenterTray* tray_;  // Weak reference.
 
@@ skipping 21 matching lines @@
   views::View* source_view_;
   int source_height_;
   views::View* target_view_;
   int target_height_;
 
   // True when the widget is closing so that further operations should be
   // ignored.
   bool is_closing_;
 
   bool is_clearing_ = false;
-  bool is_locked_ = false;
 
   // Current view mode. During animation, it is the target mode.
   Mode mode_ = Mode::BUTTONS_ONLY;
 
   std::unique_ptr<MessageViewContextMenuController> context_menu_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageCenterView);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_