Revert 50296 (Causes DCHECK failures) - Make CookieMonster NonThreadSafe....

chrome/browser/extensions/extension_data_deleter.h

Index: chrome/browser/extensions/extension_data_deleter.h
===================================================================
--- chrome/browser/extensions/extension_data_deleter.h	(revision 50356)
+++ chrome/browser/extensions/extension_data_deleter.h	(working copy)
@@ -33,10 +33,6 @@
   void StartDeleting();
 
  private:
-  // Deletes the cookies for the extension. May only be called on the io
-  // thread.
-  void DeleteCookiesOnIOThread();
-
   // Deletes the database for the extension. May only be called on the file
   // thread.
   void DeleteDatabaseOnFileThread();