[oilpan] Remove GC_INFO_{DEFINE,DECLARE} macros

Source/heap/tests/HeapTest.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:
  *
  *     * 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 2476 matching lines @@
     EXPECT_EQ(afterGC4.totalObjectSpace(), initialHeapSize.totalObjectSpace());
 }
 
 class CollectionsEmbeddedClass {
     typedef HashSet<Member<IntWrapper>, HeapAllocator> IntSet;
     typedef HashMap<Member<IntWrapper>, Member<IntWrapper>, HeapAllocator> IntMap;
     typedef Vector<Member<IntWrapper>, 0, HeapAllocator> IntVector;
 
     template<typename T> friend struct FinalizerTrait;
 
-    class ObjectReferringToCollections : GarbageCollected<ObjectReferringToCollections> {
+    class ObjectReferringToCollections : public GarbageCollected<ObjectReferringToCollections> {
         DECLARE_GC_INFO
     public:
         void trace(Visitor* visitor)
         {
             visitor->trace(m_set);
             visitor->trace(m_map);
             visitor->trace(m_vector);
         }
         static ObjectReferringToCollections* create() { return new ObjectReferringToCollections; }
         IntSet* set() { return m_set; }
         IntMap* map() { return m_map; }
         IntVector* vector() { return m_vector; }
     private:
         Member<IntSet> m_set;
         Member<IntMap> m_map;
         Member<IntVector> m_vector;
         ObjectReferringToCollections()
         {
             m_set = new IntSet();
             m_map = new IntMap();
             m_vector = new IntVector();
         }
     };
 
-    class ObjectContainingCollections : GarbageCollected<ObjectContainingCollections> {
+    class ObjectContainingCollections : public GarbageCollected<ObjectContainingCollections> {
         DECLARE_GC_INFO
     public:
         IntSet m_set;
         IntMap m_map;
         IntVector m_vector;
         void trace(Visitor* visitor)
         {
             visitor->trace(m_set);
             visitor->trace(m_map);
             visitor->trace(m_vector);
@@ skipping 273 matching lines @@
 {
     HeapTester::checkAndMarkPointer();
 }
 
 TEST(heap, HeapCollectionWithFinalizers)
 {
     HeapTester::heapCollectionWithFinalizers();
 }
 
 } // namespace WebCore