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

chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h

 // Copyright 2014 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_VIEWS_APPS_APP_INFO_DIALOG_APP_INFO_DIALOG_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_APPS_APP_INFO_DIALOG_APP_INFO_DIALOG_VIEWS_H_
 
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/window/dialog_delegate.h"
 
@@ skipping 11 matching lines @@
  public:
   AppInfoDialog(gfx::NativeWindow parent_window,
                 Profile* profile,
                 const extensions::Extension* app,
                 const base::Closure& close_callback);
 
   virtual ~AppInfoDialog();
 
  private:
   // Overridden from views::View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
 
   // Overridden from views::DialogDelegate:
   virtual bool Cancel() OVERRIDE;
   virtual int GetDialogButtons() const OVERRIDE;
 
   // Overridden from views::WidgetDelegate:
   virtual ui::ModalType GetModalType() const OVERRIDE;
 
   gfx::NativeWindow parent_window_;
   Profile* profile_;
   const extensions::Extension* app_;
   base::Closure close_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(AppInfoDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_APPS_APP_INFO_DIALOG_APP_INFO_DIALOG_VIEWS_H_