Move Task Scheduler Initialization From chrome/browser to Content

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 <vector>
 
 #include "base/bind.h"
 #include "base/task_scheduler/scheduler_worker_pool_params.h"
 #include "base/task_scheduler/task_scheduler.h"
 #include "components/task_scheduler_util/initialization/browser_util.h"
 #include "components/task_scheduler_util/variations/browser_variations_util.h"
 
 namespace task_scheduler_util {
 
+#if defined(OS_IOS)
 void InitializeDefaultBrowserTaskScheduler() {
   std::vector<base::SchedulerWorkerPoolParams> params_vector =
       variations::GetBrowserSchedulerWorkerPoolParamsFromVariations();
   if (params_vector.empty()) {
     params_vector =
         initialization::GetDefaultBrowserSchedulerWorkerPoolParams();
   }
 
   base::TaskScheduler::CreateAndSetDefaultTaskScheduler(
       params_vector,
       base::Bind(&initialization::BrowserWorkerPoolIndexForTraits));
   task_scheduler_util::variations::
       MaybePerformBrowserTaskSchedulerRedirection();
 }
+#endif  // defined(OS_IOS)
 
 }  // namespace task_scheduler_util