[Oilpan] Add use-after-free detector in Member<>

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

Index: third_party/WebKit/Source/platform/heap/HeapAllocator.h
diff --git a/third_party/WebKit/Source/platform/heap/HeapAllocator.h b/third_party/WebKit/Source/platform/heap/HeapAllocator.h
index 4828ddb8d7accb736e3575742cec4d64f8066112..25c99121bf75a2bb40e6096e54a39538f152e608 100644
--- a/third_party/WebKit/Source/platform/heap/HeapAllocator.h
+++ b/third_party/WebKit/Source/platform/heap/HeapAllocator.h
@@ -41,7 +41,7 @@ public:
         ASSERT(state->isAllocationAllowed());
         size_t gcInfoIndex = GCInfoTrait<HeapVectorBacking<T, VectorTraits<T>>>::index();
         NormalPageHeap* heap = static_cast<NormalPageHeap*>(state->vectorBackingHeap(gcInfoIndex));
-        return reinterpret_cast<T*>(heap->allocateObject(Heap::allocationSizeFromSize(size), gcInfoIndex));
+        return reinterpret_cast<T*>(heap->allocateObject(Heap::allocationSizeFromSize(size), gcInfoIndex, Heap::gcGeneration()));
     }
     template <typename T>
     static T* allocateExpandedVectorBacking(size_t size)
@@ -50,7 +50,7 @@ public:
         ASSERT(state->isAllocationAllowed());
         size_t gcInfoIndex = GCInfoTrait<HeapVectorBacking<T, VectorTraits<T>>>::index();
         NormalPageHeap* heap = static_cast<NormalPageHeap*>(state->expandedVectorBackingHeap(gcInfoIndex));
-        return reinterpret_cast<T*>(heap->allocateObject(Heap::allocationSizeFromSize(size), gcInfoIndex));
+        return reinterpret_cast<T*>(heap->allocateObject(Heap::allocationSizeFromSize(size), gcInfoIndex, Heap::gcGeneration()));
     }
     static void freeVectorBacking(void*);
     static bool expandVectorBacking(void*, size_t);