Refactor WorkerPoolCreationArgs to a Read-Only WorkerPoolParams

base/task_scheduler/worker_pool_params.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 "base/task_scheduler/worker_pool_params.h"
+
+namespace base {
+namespace internal {
+
+WorkerPoolParams::WorkerPoolParams(
+    const std::string& name,
+    ThreadPriority thread_priority,
+    SchedulerWorkerPoolImpl::IORestriction io_restriction,
+    int max_threads)
+    : name_(name),
+      thread_priority_(thread_priority),
+      io_restriction_(io_restriction),
+      max_threads_(max_threads) {}
+
+}  // namespace internal
+}  // namespace base