Remove unnecessary uses of GarbageCollectedFinalized<>.

third_party/WebKit/Source/platform/LifecycleContextTest.cpp

 /*
  * Copyright (C) 2013 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 29 matching lines @@
     {
         return new DummyContext;
     }
 
     DEFINE_INLINE_TRACE()
     {
         LifecycleNotifier<DummyContext, TestingObserver>::trace(visitor);
     }
 };
 
-class TestingObserver final : public GarbageCollectedFinalized<TestingObserver>, public LifecycleObserver<DummyContext, TestingObserver, DummyContext> {
+class TestingObserver final : public GarbageCollected<TestingObserver>, public LifecycleObserver<DummyContext, TestingObserver, DummyContext> {
     USING_GARBAGE_COLLECTED_MIXIN(TestingObserver);
 public:
     static TestingObserver* create(DummyContext* context)
     {
         return new TestingObserver(context);
     }
 
     void contextDestroyed() override
     {
         LifecycleObserver::contextDestroyed();
@@ skipping 74 matching lines @@
 
     context->notifyContextDestroyed();
     EXPECT_EQ(observer->innerObserver(), nullptr);
     context = nullptr;
     ThreadHeap::collectAllGarbage();
     EXPECT_EQ(observer->lifecycleContext(), static_cast<DummyContext*>(0));
     EXPECT_TRUE(observer->contextDestroyedCalled());
 }
 
 } // namespace blink