Remove the notifyFailedSignedIn callback from Chromium.

components/test_runner/mock_credential_manager_client.cc

 // Copyright 2014 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.
 
 #include "components/test_runner/mock_credential_manager_client.h"
 
 #include "third_party/WebKit/public/platform/WebCredential.h"
 
 namespace test_runner {
 
 MockCredentialManagerClient::MockCredentialManagerClient() {
 }
 
 MockCredentialManagerClient::~MockCredentialManagerClient() {
 }
 
 void MockCredentialManagerClient::SetResponse(
     blink::WebCredential* credential) {
   credential_.reset(credential);
 }
 
-void MockCredentialManagerClient::dispatchFailedSignIn(
-    const blink::WebCredential&,
-    blink::WebCredentialManagerClient::NotificationCallbacks* callbacks) {
-  callbacks->onSuccess();
-  delete callbacks;
-}
-
 void MockCredentialManagerClient::dispatchSignedIn(
     const blink::WebCredential&,
     blink::WebCredentialManagerClient::NotificationCallbacks* callbacks) {
   callbacks->onSuccess();
   delete callbacks;
 }
 
 void MockCredentialManagerClient::dispatchRequireUserMediation(
     NotificationCallbacks* callbacks) {
   callbacks->onSuccess();
   delete callbacks;
 }
 
 void MockCredentialManagerClient::dispatchRequest(
     bool zeroClickOnly,
     const blink::WebVector<blink::WebURL>& federations,
     RequestCallbacks* callbacks) {
   callbacks->onSuccess(credential_.get());
   delete callbacks;
 }
 
 }  // namespace test_runner