More switching to standard type traits

third_party/WebKit/Source/wtf/HashTable.h

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008 David Levin <levin@chromium.org>
  *
  * 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,
@@ skipping 977 matching lines @@
     remove(find(key));
 }
 
 template <typename Key, typename Value, typename Extractor, typename HashFunctions, typename Traits, typename KeyTraits, typename Allocator>
 Value* HashTable<Key, Value, Extractor, HashFunctions, Traits, KeyTraits, Allocator>::allocateTable(unsigned size)
 {
     size_t allocSize = size * sizeof(ValueType);
     ValueType* result;
     // Assert that we will not use memset on things with a vtable entry.  The
     // compiler will also check this on some platforms. We would like to check
-    // this on the whole value (key-value pair), but IsPolymorphic will return
+    // this on the whole value (key-value pair), but std::is_polymorphic will return
     // false for a pair of two types, even if one of the components is
     // polymorphic.
-    static_assert(!Traits::emptyValueIsZero || !IsPolymorphic<KeyType>::value, "empty value cannot be zero for things with a vtable");
+    static_assert(!Traits::emptyValueIsZero || !std::is_polymorphic<KeyType>::value, "empty value cannot be zero for things with a vtable");
 
 #if ENABLE(OILPAN)
     static_assert(Allocator::isGarbageCollected
         || ((!AllowsOnlyPlacementNew<KeyType>::value || !NeedsTracing<KeyType>::value)
         && (!AllowsOnlyPlacementNew<ValueType>::value || !NeedsTracing<ValueType>::value))
         , "Cannot put DISALLOW_NEW_EXCEPT_PLACEMENT_NEW objects that have trace methods into an off-heap HashTable");
 #endif
     if (Traits::emptyValueIsZero) {
         result = Allocator::template allocateZeroedHashTableBacking<ValueType, HashTable>(allocSize);
     } else {
@@ skipping 477 matching lines @@
     CollectionIterator end(toBeRemoved.end());
     for (CollectionIterator it(toBeRemoved.begin()); it != end; ++it)
         collection.remove(*it);
 }
 
 } // namespace WTF
 
 #include "wtf/HashIterators.h"
 
 #endif // WTF_HashTable_h