arc: Use v2/auth LSO page.

components/arc/auth/arc_auth_fetcher.cc

-// Copyright 2016 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/arc/auth/arc_auth_fetcher.h"
-
-#include "base/strings/stringprintf.h"
-#include "google_apis/gaia/gaia_constants.h"
-#include "google_apis/gaia/gaia_urls.h"
-
-namespace arc {
-
-namespace {
-
-const char kGMSCoreClientId[] =
-    "1070009224336-sdh77n7uot3oc99ais00jmuft6sk2fg9.apps.googleusercontent.com";
-
-}  // namespace
-
-ArcAuthFetcher::ArcAuthFetcher(net::URLRequestContextGetter* getter,
-                               Delegate* delegate)
-    : delegate_(delegate), auth_fetcher_(this, std::string(), getter) {
-  FetchAuthCode();
-}
-
-// static
-GURL ArcAuthFetcher::CreateURL() {
-  std::string query_string =
-      base::StringPrintf("?scope=%s&client_id=%s",
-                         GaiaConstants::kOAuth1LoginScope, kGMSCoreClientId);
-  return GaiaUrls::GetInstance()->client_login_to_oauth2_url().Resolve(
-      query_string);
-}
-
-void ArcAuthFetcher::FetchAuthCode() {
-  DCHECK(!auth_fetcher_.HasPendingFetch());
-  auth_fetcher_.StartCookieForOAuthLoginTokenExchange(
-      false, /* fetch_token_from_auth_code */
-      std::string(),    /* session_index */
-      kGMSCoreClientId, std::string() /* device_id */);
-}
-
-void ArcAuthFetcher::OnClientOAuthCode(const std::string& auth_code) {
-  DCHECK(!auth_fetcher_.HasPendingFetch());
-  delegate_->OnAuthCodeFetched(auth_code);
-}
-
-void ArcAuthFetcher::OnClientOAuthFailure(const GoogleServiceAuthError& error) {
-  // UNEXPECTED_SERVICE_RESPONSE indicates no cookies in response, but request
-  // is completed successfully.
-  if (error.state() == GoogleServiceAuthError::UNEXPECTED_SERVICE_RESPONSE) {
-    delegate_->OnAuthCodeNeedUI();
-  } else {
-    VLOG(2) << "ARC Auth request failed: " << error.ToString() << ".";
-    delegate_->OnAuthCodeFailed();
-  }
-}
-
-}  // namespace arc