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

base/task_scheduler/scheduler_worker_pool_impl.h

 // 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.
 
 #ifndef BASE_TASK_SCHEDULER_SCHEDULER_WORKER_POOL_IMPL_H_
 #define BASE_TASK_SCHEDULER_SCHEDULER_WORKER_POOL_IMPL_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 12 matching lines @@
 #include "base/task_scheduler/priority_queue.h"
 #include "base/task_scheduler/scheduler_lock.h"
 #include "base/task_scheduler/scheduler_worker.h"
 #include "base/task_scheduler/scheduler_worker_pool.h"
 #include "base/task_scheduler/scheduler_worker_pool_params.h"
 #include "base/task_scheduler/scheduler_worker_stack.h"
 #include "base/task_scheduler/sequence.h"
 #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 {
 
 class DelayedTaskManager;
 class TaskTracker;
 
 // A pool of workers that run Tasks. This class is thread-safe.
 class BASE_EXPORT SchedulerWorkerPoolImpl : public SchedulerWorkerPool {
  public:
   // Callback invoked when a Sequence isn't empty after a worker pops a Task
@@ skipping 60 matching lines @@
 
   // Returns the number of workers alive in this worker pool. The value may
   // change if workers are woken up or detached during this call.
   size_t NumberOfAliveWorkersForTesting();
 
  private:
   class SchedulerSingleThreadTaskRunner;
   class SchedulerWorkerDelegateImpl;
 
   SchedulerWorkerPoolImpl(StringPiece name,
-                          const TimeDelta& suggested_reclaim_time,
+                          TimeDelta suggested_reclaim_time,
                           TaskTracker* task_tracker,
                           DelayedTaskManager* delayed_task_manager);
 
   bool Initialize(
       ThreadPriority priority_hint,
       SchedulerWorkerPoolParams::StandbyThreadPolicy standby_thread_policy,
       size_t max_threads,
       const ReEnqueueSequenceCallback& re_enqueue_sequence_callback);
 
   // Wakes up |worker|.
@@ skipping 86 matching lines @@
   TaskTracker* const task_tracker_;
   DelayedTaskManager* const delayed_task_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(SchedulerWorkerPoolImpl);
 };
 
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_TASK_SCHEDULER_SCHEDULER_WORKER_POOL_IMPL_H_