fast-update flag only accelerates the first component update check.

components/component_updater/configurator_impl_unittest.cc

-// Copyright 2016 The Chromium Authors. All rights reserved.
+// Copyright (c) 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 <memory>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "components/component_updater/configurator_impl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 25 matching lines @@
   CHECK_EQ(6 * kDelayOneMinute, config->InitialDelay());
   CHECK_EQ(6 * kDelayOneHour, config->NextCheckDelay());
   CHECK_EQ(1, config->StepDelay());
   CHECK_EQ(30 * kDelayOneMinute, config->OnDemandDelay());
   CHECK_EQ(15 * kDelayOneMinute, config->UpdateDelay());
 
   // Test the fast-update timings.
   cmdline.AppendSwitchASCII("--component-updater", "fast-update");
   config.reset(new ConfiguratorImpl(&cmdline, nullptr, false));
   CHECK_EQ(10, config->InitialDelay());
-  CHECK_EQ(kDelayOneMinute, config->NextCheckDelay());
+  CHECK_EQ(6 * kDelayOneHour, config->NextCheckDelay());
   CHECK_EQ(1, config->StepDelay());
   CHECK_EQ(2, config->OnDemandDelay());
   CHECK_EQ(10, config->UpdateDelay());
 }
 
 }  // namespace component_updater