Remove TabContents from TabModalConfirmDialog.

chrome/browser/ui/tab_modal_confirm_dialog.h

Index: chrome/browser/ui/tab_modal_confirm_dialog.h
diff --git a/chrome/browser/ui/tab_modal_confirm_dialog.h b/chrome/browser/ui/tab_modal_confirm_dialog.h
index 80a9a9cb70473279c703fec3318e71d960e13583..e9d5fed7d56d27a929751ee8cdde7a9f4411c09b 100644
--- a/chrome/browser/ui/tab_modal_confirm_dialog.h
+++ b/chrome/browser/ui/tab_modal_confirm_dialog.h
@@ -5,16 +5,19 @@
 #ifndef CHROME_BROWSER_UI_TAB_MODAL_CONFIRM_DIALOG_H_
 #define CHROME_BROWSER_UI_TAB_MODAL_CONFIRM_DIALOG_H_
 
-class TabContents;
 class TabModalConfirmDialogDelegate;
 
+namespace content {
+class WebContents;
+}
+
 // Base class for the tab modal confirm dialog.
 class TabModalConfirmDialog {
  public:
   // Platform specific factory function. This function will automatically show
   // the dialog.
   static TabModalConfirmDialog* Create(TabModalConfirmDialogDelegate* delegate,
-                                       TabContents* tab_contents);
+                                       content::WebContents* web_contents);
   // Accepts the dialog.
   virtual void AcceptTabModalDialog() = 0;