RefCounted types should not have public destructors, chrome/ remaining parts

chrome/service/gaia/service_gaia_authenticator.h

Index: chrome/service/gaia/service_gaia_authenticator.h
diff --git a/chrome/service/gaia/service_gaia_authenticator.h b/chrome/service/gaia/service_gaia_authenticator.h
index 142e322b8af76f34d001bb1045b53e88ac6261f2..bb3fb5fea3e293c789a34d913c77001b68bb0dc7 100644
--- a/chrome/service/gaia/service_gaia_authenticator.h
+++ b/chrome/service/gaia/service_gaia_authenticator.h
@@ -29,7 +29,6 @@ class ServiceGaiaAuthenticator
                            const std::string& service_id,
                            const std::string& gaia_url,
                            base::MessageLoopProxy* io_message_loop_proxy);
-  virtual ~ServiceGaiaAuthenticator();
 
   // content::URLFetcherDelegate implementation.
   virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
@@ -43,6 +42,9 @@ class ServiceGaiaAuthenticator
   virtual int GetBackoffDelaySeconds(int current_backoff_delay) OVERRIDE;
 
  private:
+  friend class base::RefCountedThreadSafe<ServiceGaiaAuthenticator>;
+  virtual ~ServiceGaiaAuthenticator();
+
   void DoPost(const GURL& post_url, const std::string& post_body);
 
   base::WaitableEvent http_post_completed_;