Revert of Worker: Introduce per-global-scope task scheduler

third_party/WebKit/Source/platform/scheduler/child/worker_global_scope_scheduler_unittest.cc

Index: third_party/WebKit/Source/platform/scheduler/child/worker_global_scope_scheduler_unittest.cc
diff --git a/third_party/WebKit/Source/platform/scheduler/child/worker_global_scope_scheduler_unittest.cc b/third_party/WebKit/Source/platform/scheduler/child/worker_global_scope_scheduler_unittest.cc
deleted file mode 100644
index 2fb71531ca9371ac2cd046f8a3d9729e225edbb8..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/scheduler/child/worker_global_scope_scheduler_unittest.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2017 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 "platform/scheduler/child/worker_global_scope_scheduler.h"
-
-#include "base/macros.h"
-#include "base/memory/ptr_util.h"
-#include "base/test/simple_test_tick_clock.h"
-#include "base/test/test_simple_task_runner.h"
-#include "platform/scheduler/base/test_time_source.h"
-#include "platform/scheduler/child/scheduler_tqm_delegate_for_test.h"
-#include "platform/scheduler/child/worker_scheduler_impl.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using testing::ElementsAreArray;
-
-namespace blink {
-namespace scheduler {
-
-namespace {
-
-void AppendToVectorTestTask(std::vector<std::string>* vector,
-                            std::string value) {
-  vector->push_back(value);
-}
-
-}  // namespace
-
-class WorkerGlobalScopeSchedulerTest : public testing::Test {
- public:
-  WorkerGlobalScopeSchedulerTest()
-      : clock_(new base::SimpleTestTickClock()),
-        mock_task_runner_(new base::TestSimpleTaskRunner()),
-        main_task_runner_(SchedulerTqmDelegateForTest::Create(
-            mock_task_runner_,
-            base::WrapUnique(new TestTimeSource(clock_.get())))),
-        scheduler_(new WorkerSchedulerImpl(main_task_runner_)) {
-    clock_->Advance(base::TimeDelta::FromMicroseconds(5000));
-  }
-
-  ~WorkerGlobalScopeSchedulerTest() override {}
-
-  void SetUp() override {
-    scheduler_->Init();
-    global_scope_scheduler_ =
-        base::MakeUnique<WorkerGlobalScopeScheduler>(scheduler_.get());
-  }
-
-  void RunUntilIdle() { mock_task_runner_->RunUntilIdle(); }
-
-  // Helper for posting a task.
-  void PostTestTask(std::vector<std::string>* run_order,
-                    const std::string& task_descriptor) {
-    global_scope_scheduler_->UnthrottledTaskRunner()->PostTask(
-        FROM_HERE, WTF::Bind(&AppendToVectorTestTask,
-                             WTF::Unretained(run_order), task_descriptor));
-  }
-
- protected:
-  std::unique_ptr<base::SimpleTestTickClock> clock_;
-  scoped_refptr<base::TestSimpleTaskRunner> mock_task_runner_;
-
-  scoped_refptr<SchedulerTqmDelegate> main_task_runner_;
-  std::unique_ptr<WorkerSchedulerImpl> scheduler_;
-  std::unique_ptr<WorkerGlobalScopeScheduler> global_scope_scheduler_;
-
-  DISALLOW_COPY_AND_ASSIGN(WorkerGlobalScopeSchedulerTest);
-};
-
-TEST_F(WorkerGlobalScopeSchedulerTest, TestPostTasks) {
-  std::vector<std::string> run_order;
-  PostTestTask(&run_order, "T1");
-  PostTestTask(&run_order, "T2");
-  RunUntilIdle();
-  PostTestTask(&run_order, "T3");
-  RunUntilIdle();
-  EXPECT_THAT(run_order, testing::ElementsAre("T1", "T2", "T3"));
-
-  // Tasks should not run after the scheduler is disposed of.
-  global_scope_scheduler_->Dispose();
-  run_order.clear();
-  PostTestTask(&run_order, "T4");
-  PostTestTask(&run_order, "T5");
-  RunUntilIdle();
-  EXPECT_TRUE(run_order.empty());
-}
-
-}  // namespace scheduler
-}  // namespace blink