Add ManagedUserTokenFetcher to fetch scoped-down tokens.

chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos_unittest.cc

 // Copyright (c) 2012 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/policy/device_cloud_policy_manager_chromeos.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 306 matching lines @@
       return;
 
     // Process robot refresh token fetch if the auth code fetch succeeded.
     // DeviceCloudPolicyManagerChromeOS holds an EnrollmentHandlerChromeOS which
     // holds a GaiaOAuthClient that fetches the refresh token during enrollment.
     // We return a successful OAuth response via a TestURLFetcher to trigger the
     // happy path for these classes so that enrollment can continue.
     if (robot_auth_fetch_status_ == DM_STATUS_SUCCESS) {
       net::TestURLFetcher* url_fetcher = url_fetcher_factory_.GetFetcherByID(0);
       ASSERT_TRUE(url_fetcher);
-      // The logic in GaiaOAuthClient seems broken, it always retries 1x on
-      // non-200 response codes, even if the retries are set to 0.  Seems like
-      // its num_retries_ > source->GetMaxRetriesOn5xx() should have a >=?
-      url_fetcher->SetMaxRetriesOn5xx(-2);
+      url_fetcher->SetMaxRetriesOn5xx(0);
       url_fetcher->set_status(net::URLRequestStatus());
       url_fetcher->set_response_code(url_fetcher_response_code_);
       url_fetcher->SetResponseString(url_fetcher_response_string_);
       url_fetcher->delegate()->OnURLFetchComplete(url_fetcher);
     }
     base::RunLoop().RunUntilIdle();
 
     // Process policy store.
     device_settings_test_helper_.set_store_result(store_result_);
     device_settings_test_helper_.FlushStore();
@@ skipping 137 matching lines @@
 TEST_F(DeviceCloudPolicyManagerChromeOSEnrollmentTest, LoadError) {
   loaded_blob_.clear();
   RunTest();
   ExpectFailedEnrollment(EnrollmentStatus::STATUS_STORE_ERROR);
   EXPECT_EQ(CloudPolicyStore::STATUS_LOAD_ERROR,
             status_.store_status());
 }
 
 }  // namespace test
 }  // namespace policy