Use TaskScheduler instead of SequencedWorkerPool in default_component_installer_unittest.cc.

components/component_updater/default_component_installer_unittest.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 <iterator>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
-#include "base/test/sequenced_worker_pool_owner.h"
+#include "base/task_scheduler/post_task.h"
+#include "base/test/scoped_task_environment.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/version.h"
 #include "components/component_updater/component_updater_service.h"
 #include "components/component_updater/component_updater_service_internal.h"
 #include "components/component_updater/default_component_installer.h"
 #include "components/update_client/crx_update_item.h"
 #include "components/update_client/test_configurator.h"
 #include "components/update_client/update_client.h"
 #include "components/update_client/update_client_errors.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 103 matching lines @@
   ComponentUpdateService* component_updater() {
     return component_updater_.get();
   }
   scoped_refptr<TestConfigurator> configurator() const { return config_; }
   base::Closure quit_closure() const { return quit_closure_; }
 
  protected:
   void RunThreads();
 
  private:
-  static const int kNumWorkerThreads_ = 2;
-
-  base::MessageLoopForUI message_loop_;
+  base::test::ScopedTaskEnvironment scoped_task_environment_;
   base::RunLoop runloop_;
   base::Closure quit_closure_;
 
-  std::unique_ptr<base::SequencedWorkerPoolOwner> worker_pool_;
-
   scoped_refptr<TestConfigurator> config_;
   scoped_refptr<MockUpdateClient> update_client_;
   std::unique_ptr<ComponentUpdateService> component_updater_;
 };
 
 DefaultComponentInstallerTest::DefaultComponentInstallerTest()
-    : worker_pool_(
-          new base::SequencedWorkerPoolOwner(kNumWorkerThreads_, "test")) {
+    : scoped_task_environment_(
+          base::test::ScopedTaskEnvironment::MainThreadType::UI) {
   quit_closure_ = runloop_.QuitClosure();
 
-  auto pool = worker_pool_->pool();
   config_ = new TestConfigurator(
-      pool->GetSequencedTaskRunner(pool->GetSequenceToken()),
-      message_loop_.task_runner());
+      base::CreateSequencedTaskRunnerWithTraits({base::MayBlock()}),
+      base::ThreadTaskRunnerHandle::Get());
 
   update_client_ = new MockUpdateClient();
   EXPECT_CALL(update_client(), AddObserver(_)).Times(1);
   component_updater_.reset(new CrxUpdateService(config_, update_client_));
 }
 
 DefaultComponentInstallerTest::~DefaultComponentInstallerTest() {
   EXPECT_CALL(update_client(), RemoveObserver(_)).Times(1);
   component_updater_.reset();
 }
@@ skipping 59 matching lines @@
       component.pk_hash);
   EXPECT_EQ(base::Version("0.0.0.0"), component.version);
   EXPECT_TRUE(component.fingerprint.empty());
   EXPECT_STREQ("fake name", component.name.c_str());
   EXPECT_EQ(expected_attrs, component.installer_attributes);
   EXPECT_TRUE(component.requires_network_encryption);
   EXPECT_TRUE(component.supports_group_policy_enable_component_updates);
 }
 
 }  // namespace component_updater