Factor out uses of the WebContentsModalDialog interface from platform-independent code

chrome/browser/ui/webui/constrained_web_dialog_delegate_base.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_CONSTRAINED_WEB_DIALOG_DELEGATE_BASE_H_
 #define CHROME_BROWSER_UI_WEBUI_CONSTRAINED_WEB_DIALOG_DELEGATE_BASE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/webui/constrained_web_dialog_ui.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
@@ skipping 11 matching lines @@
 class ConstrainedWebDialogDelegateBase
     : public ConstrainedWebDialogDelegate,
       public ui::WebDialogWebContentsDelegate {
  public:
   ConstrainedWebDialogDelegateBase(
       content::BrowserContext* browser_context,
       ui::WebDialogDelegate* delegate,
       WebDialogWebContentsDelegate* tab_delegate);
   virtual ~ConstrainedWebDialogDelegateBase();
 
-  void set_window(WebContentsModalDialog* window);
   bool closed_via_webui() const;
 
   // ConstrainedWebDialogDelegate interface.
   virtual const ui::WebDialogDelegate*
       GetWebDialogDelegate() const OVERRIDE;
   virtual ui::WebDialogDelegate* GetWebDialogDelegate() OVERRIDE;
   virtual void OnDialogCloseFromWebUI() OVERRIDE;
   virtual void ReleaseWebContentsOnDialogClose() OVERRIDE;
-  virtual WebContentsModalDialog* GetWindow() OVERRIDE;
+  virtual NativeWebContentsModalDialog GetNativeDialog() OVERRIDE;
   virtual content::WebContents* GetWebContents() OVERRIDE;
 
   // WebDialogWebContentsDelegate interface.
   virtual void HandleKeyboardEvent(
       content::WebContents* source,
       const content::NativeWebKeyboardEvent& event) OVERRIDE;
 
  private:
   scoped_ptr<ui::WebDialogDelegate> web_dialog_delegate_;
 
-  // The web contents modal dialog that owns |this|. Saved so we can close it
-  // later.
-  WebContentsModalDialog* window_;
-
   // Holds the HTML to display in the constrained dialog.
   scoped_ptr<content::WebContents> web_contents_;
 
   // Was the dialog closed from WebUI (in which case |web_dialog_delegate_|'s
   // OnDialogClosed() method has already been called)?
   bool closed_via_webui_;
 
   // If true, release |web_contents_| on close instead of destroying it.
   bool release_contents_on_close_;
 
   scoped_ptr<WebDialogWebContentsDelegate> override_tab_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogDelegateBase);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CONSTRAINED_WEB_DIALOG_DELEGATE_BASE_H_