[Oilpan] Refactoring: Rename GarbageCollectedBase to GarbageCollectedType

third_party/WebKit/Source/platform/heap/Heap.h

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 338 matching lines @@
 protected:
     void operator delete[](void* p)
     {
         ASSERT_NOT_REACHED();
     }
 #else
     void operator delete[](void* p);
 #endif
 
 public:
-    using GarbageCollectedBase = T;
+    using GarbageCollectedType = T;
 
     void* operator new(size_t size)
     {
         return allocateObject(size, IsEagerlyFinalizedType<T>::value);
     }
 
     static void* allocateObject(size_t size, bool eagerlySweep)
     {
         return Heap::allocate<T>(size, eagerlySweep);
     }
@@ skipping 138 matching lines @@
 void VisitorHelper<Derived>::handleWeakCell(Visitor* self, void* object)
 {
     T** cell = reinterpret_cast<T**>(object);
     if (*cell && !ObjectAliveTrait<T>::isHeapObjectAlive(*cell))
         *cell = nullptr;
 }
 
 } // namespace blink
 
 #endif // Heap_h