Change const TimeDelta& to TimeDelta in base/task_scheduler/.

base/task_scheduler/scheduler_worker_pool_impl.h

Index: base/task_scheduler/scheduler_worker_pool_impl.h
diff --git a/base/task_scheduler/scheduler_worker_pool_impl.h b/base/task_scheduler/scheduler_worker_pool_impl.h
index b2dc68a4f12c96c79e8e27c41a4187b3a1c6b421..34859956988b8580ffcc7cc2e29e2b3efe02b13c 100644
--- a/base/task_scheduler/scheduler_worker_pool_impl.h
+++ b/base/task_scheduler/scheduler_worker_pool_impl.h
@@ -30,11 +30,11 @@
 #include "base/task_scheduler/task.h"
 #include "base/task_scheduler/task_traits.h"
 #include "base/threading/platform_thread.h"
+#include "base/time/time.h"
 
 namespace base {
 
 class HistogramBase;
-class TimeDelta;
 
 namespace internal {
 
@@ -115,7 +115,7 @@ class BASE_EXPORT SchedulerWorkerPoolImpl : public SchedulerWorkerPool {
   class SchedulerWorkerDelegateImpl;
 
   SchedulerWorkerPoolImpl(StringPiece name,
-                          const TimeDelta& suggested_reclaim_time,
+                          TimeDelta suggested_reclaim_time,
                           TaskTracker* task_tracker,
                           DelayedTaskManager* delayed_task_manager);