Always use TaskScheduler::InitParams to initialize a TaskScheduler.

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 0e621f122263dfc2089363c36c03672d8cd83eaa..3c50d08cfdff14feb9b7321669ba0ec91705c577 100644
--- a/base/task_scheduler/task_scheduler.cc
+++ b/base/task_scheduler/task_scheduler.cc
@@ -6,7 +6,6 @@
 
 #include <algorithm>
 
-#include "base/bind.h"
 #include "base/logging.h"
 #include "base/sys_info.h"
 #include "base/task_scheduler/scheduler_worker_pool_params.h"
@@ -66,15 +65,6 @@ void TaskScheduler::CreateAndSetSimpleTaskScheduler(const std::string& name) {
 }
 #endif  // !defined(OS_NACL)
 
-// static
-void TaskScheduler::CreateAndSetDefaultTaskScheduler(
-    const std::vector<SchedulerWorkerPoolParams>& worker_pool_params_vector,
-    const WorkerPoolIndexForTraitsCallback&
-        worker_pool_index_for_traits_callback) {
-  SetInstance(internal::TaskSchedulerImpl::Create(
-      worker_pool_params_vector, worker_pool_index_for_traits_callback));
-}
-
 void TaskScheduler::CreateAndSetDefaultTaskScheduler(
     const std::string& name,
     const InitParams& init_params) {