chrome: Add TabModalConfirmDialog interface.

chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.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_UI_WEBUI_TAB_MODAL_CONFIRM_DIALOG_WEBUI_H_
 #define CHROME_BROWSER_UI_WEBUI_TAB_MODAL_CONFIRM_DIALOG_WEBUI_H_
 
 #if !(defined(USE_AURA) || defined(OS_CHROMEOS))
 #error Tab-modal confirm dialog should be shown with native UI.
 #endif
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/ui/tab_modal_confirm_dialog.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 
-class TabContents;
-class TabModalConfirmDialogDelegate;
-
 namespace ui {
 class ConstrainedWebDialogDelegate;
 }
 
 // Displays a tab-modal dialog, i.e. a dialog that will block the current page
 // but still allow the user to switch to a different page.
 // 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 TabModalConfirmDialogWebUI : public ui::WebDialogDelegate {
+class TabModalConfirmDialogWebUI : public TabModalConfirmDialog,
+                                   public ui::WebDialogDelegate {
  public:
   TabModalConfirmDialogWebUI(
       TabModalConfirmDialogDelegate* dialog_delegate,
       TabContents* tab_contents);
 
   // ui::WebDialogDelegate implementation.
   virtual ui::ModalType GetDialogModalType() const OVERRIDE;
   virtual string16 GetDialogTitle() const OVERRIDE;
   virtual GURL GetDialogContentURL() const OVERRIDE;
   virtual void GetWebUIMessageHandlers(
       std::vector<content::WebUIMessageHandler*>* handlers) const OVERRIDE;
   virtual void GetDialogSize(gfx::Size* size) const OVERRIDE;
   virtual std::string GetDialogArgs() const OVERRIDE;
   virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE;
   virtual void OnCloseContents(content::WebContents* source,
                                bool* out_close_dialog) OVERRIDE;
   virtual bool ShouldShowDialogTitle() const OVERRIDE;
 
   ui::ConstrainedWebDialogDelegate* constrained_web_dialog_delegate() {
     return constrained_web_dialog_delegate_;
   }
 
  private:
   virtual ~TabModalConfirmDialogWebUI();
 
+  // TabModalConfirmDialog:
+  virtual void AcceptTabModalDialog() OVERRIDE;
+  virtual void CancelTabModalDialog() OVERRIDE;
+
   scoped_ptr<TabModalConfirmDialogDelegate> delegate_;
 
   // Deletes itself.
   ui::ConstrainedWebDialogDelegate* constrained_web_dialog_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TabModalConfirmDialogWebUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_TAB_MODAL_CONFIRM_DIALOG_WEBUI_H_