revert thread isolate in PreallocatedStorageAllocationPolicy

src/list.h

Index: src/list.h
diff --git a/src/list.h b/src/list.h
index d64256887b1d2822e9e571cc31ded21f87fa7d47..0e4e35bb41b78b3ff5aa8b106ea284d1e4ded91c 100644
--- a/src/list.h
+++ b/src/list.h
@@ -48,15 +48,13 @@ namespace internal {
 // template <typename T,
 //           class AllocationPolicy = FreeStoreAllocationPolicy> class List;
 template <typename T, class AllocationPolicy>
-class List : private AllocationPolicy::Deleter {
+class List {
  public:
-  explicit List(AllocationPolicy allocator = AllocationPolicy())
-    : AllocationPolicy::Deleter(allocator) {
+  explicit List(AllocationPolicy allocator = AllocationPolicy()) {
     Initialize(0, allocator);
   }
   INLINE(explicit List(int capacity,
-                       AllocationPolicy allocator = AllocationPolicy()))
-    : AllocationPolicy::Deleter(allocator) {
+                       AllocationPolicy allocator = AllocationPolicy())) {
     Initialize(capacity, allocator);
   }
   INLINE(~List()) { DeleteData(data_); }
@@ -73,7 +71,7 @@ class List : private AllocationPolicy::Deleter {
     return allocator.New(static_cast<int>(size));
   }
   INLINE(void operator delete(void* p)) {
-    AllocationPolicy::Deleter::Delete(p);
+    AllocationPolicy::Delete(p);
   }
 
   // Please the MSVC compiler.  We should never have to execute this.
@@ -81,13 +79,6 @@ class List : private AllocationPolicy::Deleter {
     UNREACHABLE();
   }
 
-  // Delete via the instance Deleter
-  static void Delete(List* p) {
-    if (p == NULL) return;
-    p->~List();
-    p->AllocationPolicy::Deleter::Delete(p);
-  }
-
   // Returns a reference to the element at index i.  This reference is
   // not safe to use after operations that can change the list's
   // backing store (e.g. Add).
@@ -188,7 +179,7 @@ class List : private AllocationPolicy::Deleter {
     return static_cast<T*>(allocator.New(n * sizeof(T)));
   }
   INLINE(void DeleteData(T* data))  {
-    this->AllocationPolicy::Deleter::Delete(data);
+    AllocationPolicy::Delete(data);
   }
 
   // Increase the capacity of a full list, and add an element.