[ARC] Add browser test of ArcAuthService

chrome/browser/chromeos/arc/auth/arc_background_auth_code_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 "chrome/browser/chromeos/arc/auth/arc_background_auth_code_fetcher.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/values.h"
-#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
-#include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
-#include "components/signin/core/browser/signin_manager_base.h"
 #include "components/user_manager/known_user.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/common/url_constants.h"
 #include "google_apis/gaia/gaia_auth_fetcher.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 
 namespace arc {
@@ skipping 19 matching lines @@
 ArcBackgroundAuthCodeFetcher::ArcBackgroundAuthCodeFetcher(
     Profile* profile,
     ArcAuthContext* context)
     : OAuth2TokenService::Consumer(kConsumerName),
       profile_(profile),
       context_(context),
       weak_ptr_factory_(this) {}
 
 ArcBackgroundAuthCodeFetcher::~ArcBackgroundAuthCodeFetcher() = default;
 
+// static
+std::string ArcBackgroundAuthCodeFetcher::GetTokenExchangeEndpointForTesting() {
+  return kEndPoint;

[khmel, 2017/05/12 15:52:28]

nit: probably better to expose this via header

[blundell, 2017/05/15 08:32:32]

Done.

+}
+
 void ArcBackgroundAuthCodeFetcher::Fetch(const FetchCallback& callback) {
   DCHECK(callback_.is_null());
   callback_ = callback;
 
   context_->Prepare(base::Bind(&ArcBackgroundAuthCodeFetcher::OnPrepared,
                                weak_ptr_factory_.GetWeakPtr()));
 }
 
 void ArcBackgroundAuthCodeFetcher::OnPrepared(
     net::URLRequestContextGetter* request_context_getter) {
@@ skipping 110 matching lines @@
 }
 
 void ArcBackgroundAuthCodeFetcher::ReportResult(
     const std::string& auth_code,
     OptInSilentAuthCode uma_status) {
   UpdateSilentAuthCodeUMA(uma_status);
   base::ResetAndReturn(&callback_).Run(!auth_code.empty(), auth_code);
 }
 
 }  // namespace arc