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

components/scheduler/child/scheduler_helper_unittest.cc

 // Copyright 2014 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/child/scheduler_helper.h"
 
 #include "base/callback.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "components/scheduler/base/task_queue.h"
 #include "components/scheduler/base/test_time_source.h"
-#include "components/scheduler/child/scheduler_task_runner_delegate_for_test.h"
+#include "components/scheduler/child/scheduler_tqm_delegate_for_test.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 using testing::AnyNumber;
 using testing::Invoke;
 using testing::Return;
 
 namespace scheduler {
 
@@ skipping 16 matching lines @@
   }
 }
 
 };  // namespace
 
 class SchedulerHelperTest : public testing::Test {
  public:
   SchedulerHelperTest()
       : clock_(new base::SimpleTestTickClock()),
         mock_task_runner_(new cc::OrderedSimpleTaskRunner(clock_.get(), false)),
-        main_task_runner_(
-            SchedulerTaskRunnerDelegateForTest::Create(mock_task_runner_)),
+        main_task_runner_(SchedulerTqmDelegateForTest::Create(
+            mock_task_runner_,
+            make_scoped_ptr(new TestTimeSource(clock_.get())))),
         scheduler_helper_(new SchedulerHelper(
             main_task_runner_,
             "test.scheduler",
             TRACE_DISABLED_BY_DEFAULT("test.scheduler"),
             TRACE_DISABLED_BY_DEFAULT("test.scheduler.dbg"))),
         default_task_runner_(scheduler_helper_->DefaultTaskRunner()) {
     clock_->Advance(base::TimeDelta::FromMicroseconds(5000));
-    scheduler_helper_->SetTimeSourceForTesting(
-        make_scoped_ptr(new TestTimeSource(clock_.get())));
-    scheduler_helper_->GetTaskQueueManagerForTesting()->SetTimeSourceForTesting(
-        make_scoped_ptr(new TestTimeSource(clock_.get())));
   }
 
   ~SchedulerHelperTest() override {}
 
   void TearDown() override {
     // Check that all tests stop posting tasks.
     mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
     while (mock_task_runner_->RunUntilIdle()) {
     }
   }
 
   void RunUntilIdle() { mock_task_runner_->RunUntilIdle(); }
 
   template <typename E>
   static void CallForEachEnumValue(E first,
                                    E last,
                                    const char* (*function)(E)) {
     for (E val = first; val < last;
          val = static_cast<E>(static_cast<int>(val) + 1)) {
       (*function)(val);
     }
   }
 
  protected:
   scoped_ptr<base::SimpleTestTickClock> clock_;
   scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner_;
 
-  scoped_refptr<SchedulerTaskRunnerDelegateForTest> main_task_runner_;
+  scoped_refptr<SchedulerTqmDelegateForTest> main_task_runner_;
   scoped_ptr<SchedulerHelper> scheduler_helper_;
   scoped_refptr<base::SingleThreadTaskRunner> default_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(SchedulerHelperTest);
 };
 
 TEST_F(SchedulerHelperTest, TestPostDefaultTask) {
   std::vector<std::string> run_order;
   default_task_runner_->PostTask(
       FROM_HERE, base::Bind(&AppendToVectorTestTask, &run_order, "D1"));
@@ skipping 100 matching lines @@
   scoped_refptr<TaskQueue> task_queue =
       scheduler_helper_->NewTaskQueue(TaskQueue::Spec("test_queue"));
 
   EXPECT_CALL(observer, OnUnregisterTaskQueue(_)).Times(1);
   task_queue->UnregisterTaskQueue();
 
   scheduler_helper_->SetObserver(nullptr);
 }
 
 }  // namespace scheduler