Adds a flag to support "Virtual Time" to the blink scheduler

components/scheduler/base/task_queue_manager_delegate_for_test.cc

+// Copyright 2015 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 "components/scheduler/base/task_queue_manager_delegate_for_test.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+
+namespace scheduler {
+
+// static
+scoped_refptr<TaskQueueManagerDelegateForTest>
+TaskQueueManagerDelegateForTest::Create(
+    scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+    scoped_ptr<base::TickClock> time_source) {
+  return make_scoped_refptr(
+      new TaskQueueManagerDelegateForTest(task_runner, time_source.Pass()));
+}
+
+TaskQueueManagerDelegateForTest::TaskQueueManagerDelegateForTest(
+    scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+    scoped_ptr<base::TickClock> time_source)
+    : task_runner_(task_runner), time_source_(time_source.Pass()) {}
+
+TaskQueueManagerDelegateForTest::~TaskQueueManagerDelegateForTest() {}
+
+bool TaskQueueManagerDelegateForTest::PostDelayedTask(
+    const tracked_objects::Location& from_here,
+    const base::Closure& task,
+    base::TimeDelta delay) {
+  return task_runner_->PostDelayedTask(from_here, task, delay);
+}
+
+bool TaskQueueManagerDelegateForTest::PostNonNestableDelayedTask(
+    const tracked_objects::Location& from_here,
+    const base::Closure& task,
+    base::TimeDelta delay) {
+  return task_runner_->PostNonNestableDelayedTask(from_here, task, delay);
+}
+
+bool TaskQueueManagerDelegateForTest::RunsTasksOnCurrentThread() const {
+  return task_runner_->RunsTasksOnCurrentThread();
+}
+
+bool TaskQueueManagerDelegateForTest::IsNested() const {
+  return false;
+}
+
+base::TimeTicks TaskQueueManagerDelegateForTest::NowTicks() {
+  return time_source_->NowTicks();
+}
+
+void TaskQueueManagerDelegateForTest::OnNoMoreImmediateWork() {}
+
+}  // namespace scheduler