Remove more bits of the Oilpan tracing system

sky/engine/wtf/VectorTraits.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 23 matching lines @@
 
     template<typename T>
     struct VectorTraitsBase
     {
         static const bool needsDestruction = !IsPod<T>::value;
         static const bool canInitializeWithMemset = IsPod<T>::value;
         static const bool canMoveWithMemcpy = IsPod<T>::value;
         static const bool canCopyWithMemcpy = IsPod<T>::value;
         static const bool canFillWithMemset = IsPod<T>::value && (sizeof(T) == sizeof(char));
         static const bool canCompareWithMemcmp = IsPod<T>::value;
-        template<typename U = void>
-        struct NeedsTracingLazily {
-            static const bool value = NeedsTracing<T>::value;
-        };
         static const WeakHandlingFlag weakHandlingFlag = NoWeakHandlingInCollections; // We don't support weak handling in vectors.
     };
 
     template<typename T>
     struct VectorTraits : VectorTraitsBase<T> { };
 
     // Classes marked with SimpleVectorTraits will use memmov, memcpy, memcmp
     // instead of constructors, copy operators, etc for initialization, move
     // and comparison.
     template<typename T>
@@ skipping 18 matching lines @@
     {
         typedef VectorTraits<First> FirstTraits;
         typedef VectorTraits<Second> SecondTraits;
 
         static const bool needsDestruction = FirstTraits::needsDestruction || SecondTraits::needsDestruction;
         static const bool canInitializeWithMemset = FirstTraits::canInitializeWithMemset && SecondTraits::canInitializeWithMemset;
         static const bool canMoveWithMemcpy = FirstTraits::canMoveWithMemcpy && SecondTraits::canMoveWithMemcpy;
         static const bool canCopyWithMemcpy = FirstTraits::canCopyWithMemcpy && SecondTraits::canCopyWithMemcpy;
         static const bool canFillWithMemset = false;
         static const bool canCompareWithMemcmp = FirstTraits::canCompareWithMemcmp && SecondTraits::canCompareWithMemcmp;
-        template <typename U = void>
-        struct NeedsTracingLazily {
-            static const bool value = ShouldBeTraced<FirstTraits>::value || ShouldBeTraced<SecondTraits>::value;
-        };
         static const WeakHandlingFlag weakHandlingFlag = NoWeakHandlingInCollections; // We don't support weak handling in vectors.
     };
 
 } // namespace WTF
 
 #define WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(ClassName) \
 namespace WTF { \
     template<> \
     struct VectorTraits<ClassName> : SimpleClassVectorTraits<ClassName> { }; \
 }
@@ skipping 14 matching lines @@
     struct VectorTraits<ClassName> : VectorTraitsBase<ClassName> \
     { \
         static const bool canInitializeWithMemset = true; \
     }; \
 }
 
 using WTF::VectorTraits;
 using WTF::SimpleClassVectorTraits;
 
 #endif // WTF_VectorTraits_h