Oilpan: fix Windows build after r187674.

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 1121 matching lines @@
 };
 
 template<typename T> struct DefaultHash<blink::WeakMember<T>> {
     using Hash = PtrHash<blink::WeakMember<T>>;
 };
 
 template<typename T> struct DefaultHash<blink::Persistent<T>> {
     using Hash = PtrHash<blink::Persistent<T>>;
 };
 
-template<typename T>
-struct NeedsTracing<blink::Member<T>> {
-    static const bool value = true;
-};
-
-template<typename T>
-struct IsWeak<blink::WeakMember<T>> {
-    static const bool value = true;
-};
-
 template<typename T> inline T* getPtr(const blink::Member<T>& p)
 {
     return p.get();
 }
 
 template<typename T> inline T* getPtr(const blink::Persistent<T>& p)
 {
     return p.get();
 }
 
-template<typename T, size_t inlineCapacity>
-struct NeedsTracing<ListHashSetNode<T, blink::HeapListHashSetAllocator<T, inlineCapacity>> *> {
-    // All heap allocated node pointers need visiting to keep the nodes alive,
-    // regardless of whether they contain pointers to other heap allocated
-    // objects.
-    static const bool value = true;
-};
-
 // For wtf/Functional.h
 template<typename T, bool isGarbageCollected> struct PointerParamStorageTraits;
 
 template<typename T>
 struct PointerParamStorageTraits<T*, false> {
     using StorageType = T*;
 
     static StorageType wrap(T* value) { return value; }
     static T* unwrap(const StorageType& value) { return value; }
 };
@@ skipping 13 matching lines @@
 template<typename T>
 struct ParamStorageTraits<RawPtr<T>> : public PointerParamStorageTraits<T*, blink::IsGarbageCollectedType<T>::value> {
 };
 
 template<typename T>
 PassRefPtr<T> adoptRef(blink::RefCountedGarbageCollected<T>*) = delete;
 
 } // namespace WTF
 
 #endif