views: Make view::Views::GetPreferredSize() const.

ui/message_center/views/notification_view.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 UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
 #define UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
 
 #include <vector>
 
 #include "ui/message_center/message_center_export.h"
@@ skipping 24 matching lines @@
   // notification type. A notification is top level if it needs to be rendered
   // outside the browser window. No custom shadows are created for top level
   // notifications on Linux with Aura.
   // |controller| may be NULL, but has to be set before the view is shown.
   static NotificationView* Create(MessageCenterController* controller,
                                   const Notification& notification,
                                   bool top_level);
   virtual ~NotificationView();
 
   // Overridden from views::View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual int GetHeightForWidth(int width) OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
+  virtual int GetHeightForWidth(int width) const OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void ScrollRectToVisible(const gfx::Rect& rect) OVERRIDE;
   virtual views::View* GetEventHandlerForRect(const gfx::Rect& rect) OVERRIDE;
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
 
   // Overridden from MessageView:
   virtual void UpdateWithNotification(
       const Notification& notification) OVERRIDE;
   virtual void ButtonPressed(views::Button* sender,
@@ skipping 21 matching lines @@
 
   void CreateOrUpdateTitleView(const Notification& notification);
   void CreateOrUpdateMessageView(const Notification& notification);
   void CreateOrUpdateContextMessageView(const Notification& notification);
   void CreateOrUpdateProgressBarView(const Notification& notification);
   void CreateOrUpdateListItemViews(const Notification& notification);
   void CreateOrUpdateIconView(const Notification& notification);
   void CreateOrUpdateImageView(const Notification& notification);
   void CreateOrUpdateActionButtonViews(const Notification& notification);
 
-  int GetMessageLineLimit(int title_lines, int width);
-  int GetMessageHeight(int width, int limit);
+  int GetMessageLineLimit(int title_lines, int width) const;
+  int GetMessageHeight(int width, int limit) const;
 
   MessageCenterController* controller_;  // Weak, lives longer then views.
 
   // Describes whether the view should display a hand pointer or not.
   bool clickable_;
 
   // Weak references to NotificationView descendants owned by their parents.
   views::View* top_view_;
   BoundedLabel* title_view_;
   BoundedLabel* message_view_;
   BoundedLabel* context_message_view_;
   std::vector<views::View*> item_views_;
   views::View* icon_view_;
   views::View* bottom_view_;
   views::View* image_view_;
   views::ProgressBar* progress_bar_view_;
   std::vector<views::View*> action_buttons_;
   std::vector<views::View*> separators_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationView);
 };
 
 }  // namespace message_center
 
 #endif // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_