Add TaskScheduler::InitParams and accept it in TaskSchedulerImpl constructor.

base/task_scheduler/task_scheduler.cc

Index: base/task_scheduler/task_scheduler.cc
diff --git a/base/task_scheduler/task_scheduler.cc b/base/task_scheduler/task_scheduler.cc
index 592d6f4a15ecb97f79f890cbd66ee9001c82f596..c70bc0bfbb9a6e09ba93f40550fad633297bbde0 100644
--- a/base/task_scheduler/task_scheduler.cc
+++ b/base/task_scheduler/task_scheduler.cc
@@ -21,8 +21,29 @@ namespace {
 // |g_task_scheduler| is intentionally leaked on shutdown.
 TaskScheduler* g_task_scheduler = nullptr;
 
+SchedulerWorkerPoolParams AugmentWorkerPoolParamsWithNameAndPriority(

[robliao, 2017/03/23 18:00:52]

This can be removed, right?

[fdoray, 2017/03/24 14:00:38]

Done.

+    const std::string& name,
+    ThreadPriority priority_hint,
+    const SchedulerWorkerPoolParams params) {
+  return SchedulerWorkerPoolParams(
+      name, priority_hint, params.standby_thread_policy(), params.max_threads(),
+      params.suggested_reclaim_time(), params.backward_compatibility());
+}
+
 }  // namespace
 
+TaskScheduler::InitParams::InitParams(
+    const SchedulerWorkerPoolParams& background_worker_pool_params_in,
+    const SchedulerWorkerPoolParams& background_blocking_worker_pool_params_in,
+    const SchedulerWorkerPoolParams& foreground_worker_pool_params_in,
+    const SchedulerWorkerPoolParams& foreground_blocking_worker_pool_params_in)
+    : background_worker_pool_params(background_worker_pool_params_in),
+      background_blocking_worker_pool_params(
+          background_blocking_worker_pool_params_in),
+      foreground_worker_pool_params(foreground_worker_pool_params_in),
+      foreground_blocking_worker_pool_params(
+          foreground_blocking_worker_pool_params_in) {}
+
 #if !defined(OS_NACL)
 // static
 void TaskScheduler::CreateAndSetSimpleTaskScheduler(const std::string& name) {
@@ -31,7 +52,7 @@ void TaskScheduler::CreateAndSetSimpleTaskScheduler(const std::string& name) {
   worker_pool_params_vector.emplace_back(
       name, ThreadPriority::NORMAL,
       SchedulerWorkerPoolParams::StandbyThreadPolicy::LAZY,
-      std::max(kMinNumThreads, base::SysInfo::NumberOfProcessors()),
+      std::max(kMinNumThreads, SysInfo::NumberOfProcessors()),
       TimeDelta::FromSeconds(30));
   CreateAndSetDefaultTaskScheduler(
       worker_pool_params_vector,
@@ -48,6 +69,12 @@ void TaskScheduler::CreateAndSetDefaultTaskScheduler(
       worker_pool_params_vector, worker_pool_index_for_traits_callback));
 }
 
+void TaskScheduler::CreateAndSetDefaultTaskScheduler(
+    const std::string& name,
+    const InitParams& init_params) {
+  SetInstance(internal::TaskSchedulerImpl::Create(name, init_params));
+}
+
 // static
 void TaskScheduler::SetInstance(std::unique_ptr<TaskScheduler> task_scheduler) {
   delete g_task_scheduler;