Oilpan: GC profiling.

Source/platform/heap/Handle.h

 /*
  * Copyright (C) 2014 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 326 matching lines @@
 
     template<typename U>
     U* as() const
     {
         return static_cast<U*>(m_raw);
     }
 
     void trace(Visitor* visitor)
     {
         COMPILE_ASSERT_IS_GARBAGE_COLLECTED(T, NonGarbageCollectedObjectInPersistent);
-#if ENABLE(GC_TRACING)
+#if GC_PROFILE_MARKING
         visitor->setHostInfo(this, m_tracingName.isEmpty() ? "Persistent" : m_tracingName);
 #endif
         visitor->mark(m_raw);
     }
 
     T* release()
     {
         T* result = m_raw;
         m_raw = 0;
         return result;
@@ skipping 35 matching lines @@
     Persistent& operator=(const RawPtr<U>& other)
     {
         m_raw = other;
         recordBacktrace();
         return *this;
     }
 
     T* get() const { return m_raw; }
 
 private:
-#if ENABLE(GC_TRACING)
+#if GC_PROFILE_MARKING
     void recordBacktrace()
     {
         if (m_raw)
             m_tracingName = Heap::createBacktraceString();
     }
 
     String m_tracingName;
 #else
     inline void recordBacktrace() const { }
 #endif
@@ skipping 24 matching lines @@
     // DEFINE_STATIC_LOCAL et. al.
     WTF_USE_ALLOCATOR(PersistentHeapCollectionBase, WTF::DefaultAllocator);
 public:
     PersistentHeapCollectionBase() { }
 
     template<typename OtherCollection>
     PersistentHeapCollectionBase(const OtherCollection& other) : Collection(other) { }
 
     void trace(Visitor* visitor)
     {
-#if ENABLE(GC_TRACING)
+#if GC_PROFILE_MARKING
         visitor->setHostInfo(this, "PersistentHeapCollectionBase");
 #endif
         visitor->trace(*static_cast<Collection*>(this));
     }
 };
 
 template<
     typename KeyArg,
     typename MappedArg,
     typename HashArg = typename DefaultHash<KeyArg>::Hash,
@@ skipping 704 matching lines @@
 struct ParamStorageTraits<T*> : public PointerParamStorageTraits<T*, WebCore::IsGarbageCollectedType<T>::value> {
 };
 
 template<typename T>
 struct ParamStorageTraits<RawPtr<T> > : public PointerParamStorageTraits<T*, WebCore::IsGarbageCollectedType<T>::value> {
 };
 
 } // namespace WTF
 
 #endif