Remove TabContents from TabModalConfirmDialog.

chrome/browser/ui/cocoa/tab_modal_confirm_dialog_mac.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_COCOA_TAB_MODAL_CONFIRM_DIALOG_MAC_H_
 #define CHROME_BROWSER_UI_COCOA_TAB_MODAL_CONFIRM_DIALOG_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/cocoa/constrained_window_mac.h"
 #include "chrome/browser/ui/cocoa/constrained_window/constrained_window_mac2.h"
 #include "chrome/browser/ui/tab_modal_confirm_dialog.h"
 
 @class ConstrainedWindowAlert;
-class TabContents;
 class TabModalConfirmDialogDelegate;
 
+namespace content {
+class WebContents;
+}
+
 // 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 TabModalConfirmDialogMac
     : public TabModalConfirmDialog,
       public ConstrainedWindowMacDelegateSystemSheet {
  public:
   TabModalConfirmDialogMac(TabModalConfirmDialogDelegate* delegate,
-                           TabContents* tab_contents);
+                           content::WebContents* web_contents);
 
   // ConstrainedWindowDelegateMacSystemSheet:
   virtual void DeleteDelegate() OVERRIDE;
 
  private:
   virtual ~TabModalConfirmDialogMac();
 
   // TabModalConfirmDialog:
   virtual void AcceptTabModalDialog() OVERRIDE;
   virtual void CancelTabModalDialog() OVERRIDE;
 
   scoped_ptr<TabModalConfirmDialogDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TabModalConfirmDialogMac);
 };
 
 @class TabModalConfirmDialogMacBridge2;
 
 // This class is the same as TabModalConfirmDialogMac except that it uses
 // the new constrained window look and feel.
 class TabModalConfirmDialogMac2 : public TabModalConfirmDialog,
                                   public ConstrainedWindowMacDelegate2 {
  public:
   TabModalConfirmDialogMac2(TabModalConfirmDialogDelegate* delegate,
-                            TabContents* tab_contents);
+                            content::WebContents* web_contents);
 
  private:
   virtual ~TabModalConfirmDialogMac2();
 
   // TabModalConfirmDialog:
   virtual void AcceptTabModalDialog() OVERRIDE;
   virtual void CancelTabModalDialog() OVERRIDE;
 
   // ConstrainedWindowMacDelegate2:
   virtual void OnConstrainedWindowClosed(
       ConstrainedWindowMac2* window) OVERRIDE;
 
   scoped_ptr<ConstrainedWindowMac2> window_;
   scoped_ptr<TabModalConfirmDialogDelegate> delegate_;
   scoped_nsobject<ConstrainedWindowAlert> alert_;
   scoped_nsobject<TabModalConfirmDialogMacBridge2> bridge_;
 
   DISALLOW_COPY_AND_ASSIGN(TabModalConfirmDialogMac2);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_TAB_MODAL_CONFIRM_DIALOG_MAC_H_