Disallow posting tasks to SequencedWorkerPools by default.

components/task_scheduler_util/initialization_util.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/task_scheduler_util/initialization_util.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
@@ skipping 176 matching lines @@
   base::TaskScheduler::CreateAndSetDefaultTaskScheduler(
       params_vector, base::Bind(WorkerPoolIndexForTraits));
 
   // TODO(gab): Remove this when http://crbug.com/622400 concludes.
   const auto sequenced_worker_pool_param =
       variation_params.find("RedirectSequencedWorkerPools");
   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableBrowserTaskScheduler) &&
       sequenced_worker_pool_param != variation_params.end() &&
       sequenced_worker_pool_param->second == "true") {
-    base::SequencedWorkerPool::RedirectToTaskSchedulerForProcess();
+    base::SequencedWorkerPool::EnableWithRedirectionToTaskSchedulerForProcess();
+  } else {
+    base::SequencedWorkerPool::EnableForProcess();
   }
 }
 
 }  // namespace task_scheduler_util