Rename UserInfo method GetEmail to GetDisplayEmail.

components/user_manager/empty_user_info.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/user_manager/empty_user_info.h"
-
-#include "base/logging.h"
-#include "base/strings/utf_string_conversions.h"
-#include "components/signin/core/account_id/account_id.h"
-
-namespace user_manager {
-
-EmptyUserInfo::EmptyUserInfo() {
-}
-
-EmptyUserInfo::~EmptyUserInfo() {
-}
-
-base::string16 EmptyUserInfo::GetDisplayName() const {
-  NOTIMPLEMENTED();
-  return base::string16();
-}
-
-base::string16 EmptyUserInfo::GetGivenName() const {
-  NOTIMPLEMENTED();
-  return base::string16();
-}
-
-std::string EmptyUserInfo::GetEmail() const {
-  NOTIMPLEMENTED();
-  return std::string();
-}
-
-const AccountId& EmptyUserInfo::GetAccountId() const {
-  NOTIMPLEMENTED();
-  return EmptyAccountId();
-}
-
-const gfx::ImageSkia& EmptyUserInfo::GetImage() const {
-  NOTIMPLEMENTED();
-  // To make the compiler happy.
-  return null_image_;
-}
-
-}  // namespace user_manager