Tidy up inclusion of WebScheduler.h

third_party/WebKit/Source/platform/scheduler/CancellableTaskFactoryTest.cpp

 // 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 "platform/scheduler/CancellableTaskFactory.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 namespace {
 
-class TestCancellableTaskFactory : public CancellableTaskFactory {
+class TestCancellableTaskFactory final : public CancellableTaskFactory {
 public:
     explicit TestCancellableTaskFactory(PassOwnPtr<Closure> closure)
         : CancellableTaskFactory(closure)
     {
     }
 };
 
 } // namespace
 
 using CancellableTaskFactoryTest = testing::Test;
@@ skipping 146 matching lines @@
     OwnPtr<WebTaskRunner::Task> taskB = adoptPtr(factory.cancelAndCreate());
 
     taskA->run();
     EXPECT_EQ(0, executionCount);
 
     taskB->run();
     EXPECT_EQ(1, executionCount);
 }
 
 } // namespace blink