base::Bind: Convert most of net/http.

net/http/http_auth_controller.h

Index: net/http/http_auth_controller.h
diff --git a/net/http/http_auth_controller.h b/net/http/http_auth_controller.h
index 2712d0025cd2575d09607a8251cc310cd435d391..2995bb7c3321fac0e427ea334ec9ede55cfb9d09 100644
--- a/net/http/http_auth_controller.h
+++ b/net/http/http_auth_controller.h
@@ -45,7 +45,7 @@ class NET_EXPORT_PRIVATE HttpAuthController
   // a token is correctly generated synchronously, as well as when no tokens
   // were necessary.
   virtual int MaybeGenerateAuthToken(const HttpRequestInfo* request,
-                                     OldCompletionCallback* callback,
+                                     const CompletionCallback& callback,
                                      const BoundNetLog& net_log);
 
   // Adds either the proxy auth header, or the origin server auth header,
@@ -163,8 +163,7 @@ class NET_EXPORT_PRIVATE HttpAuthController
 
   std::set<HttpAuth::Scheme> disabled_schemes_;
 
-  OldCompletionCallbackImpl<HttpAuthController> io_callback_;
-  OldCompletionCallback* user_callback_;
+  CompletionCallback callback_;
 };
 
 }  // namespace net