content: Move constrained window code from TabContents to TabContentsWrapper

chrome/browser/ui/gtk/repost_form_warning_gtk.h

 // Copyright (c) 2011 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_GTK_REPOST_FORM_WARNING_GTK_H_
 #define CHROME_BROWSER_UI_GTK_REPOST_FORM_WARNING_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
 #include "ui/base/gtk/gtk_signal.h"
 
 class RepostFormWarningController;
+class TabContents;
 
 // Displays a dialog that warns the user that they are about to resubmit
 // a form.
 // To display the dialog, allocate this object on the heap. It will open the
 // dialog from its constructor and then delete itself when the user dismisses
 // the dialog.
 class RepostFormWarningGtk : public ConstrainedWindowGtkDelegate {
  public:
   RepostFormWarningGtk(GtkWindow* parent, TabContents* tab_contents);
 
@@ skipping 12 matching lines @@
   scoped_ptr<RepostFormWarningController> controller_;
 
   GtkWidget* dialog_;
   GtkWidget* ok_;
   GtkWidget* cancel_;
 
   DISALLOW_COPY_AND_ASSIGN(RepostFormWarningGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_REPOST_FORM_WARNING_GTK_H_