Fix unit test style in Source/platform/, part 2.

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 "config.h"
 #include "platform/scheduler/CancellableTaskFactory.h"
 
 #include <gtest/gtest.h>
 
-using blink::CancellableTaskFactory;
-using blink::WebThread;
+namespace blink {
 
-namespace {
-
-typedef testing::Test CancellableTaskFactoryTest;
+using CancellableTaskFactoryTest = testing::Test;
 
 TEST_F(CancellableTaskFactoryTest, IsPending_TaskNotCreated)
 {
     CancellableTaskFactory factory(nullptr);
 
     EXPECT_FALSE(factory.isPending());
 }
 
 TEST_F(CancellableTaskFactoryTest, IsPending_TaskCreated)
 {
@@ skipping 135 matching lines @@
     OwnPtr<WebThread::Task> taskA = adoptPtr(factory.cancelAndCreate());
     OwnPtr<WebThread::Task> taskB = adoptPtr(factory.cancelAndCreate());
 
     taskA->run();
     EXPECT_EQ(0, executionCount);
 
     taskB->run();
     EXPECT_EQ(1, executionCount);
 }
 
-} // namespace
+} // namespace blink