replace COMPILE_ASSERT with static_assert in core/dom/

Source/core/dom/ElementData.cpp

 /*
  * Copyright (C) 2013 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 24 matching lines @@
 #include "core/dom/QualifiedName.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 struct SameSizeAsElementData : public RefCountedWillBeGarbageCollectedFinalized<SameSizeAsElementData> {
     unsigned bitfield;
     void* pointers[3];
 };
 
-COMPILE_ASSERT(sizeof(ElementData) == sizeof(SameSizeAsElementData), element_attribute_data_should_stay_small);
+static_assert(sizeof(ElementData) == sizeof(SameSizeAsElementData), "ElementData should stay small");
 
 static size_t sizeForShareableElementDataWithAttributeCount(unsigned count)
 {
     return sizeof(ShareableElementData) + sizeof(Attribute) * count;
 }
 
 ElementData::ElementData()
     : m_isUnique(true)
     , m_arraySize(0)
     , m_presentationAttributeStyleIsDirty(false)
@@ skipping 156 matching lines @@
     return adoptRefWillBeNoop(new (slot) ShareableElementData(*this));
 }
 
 void UniqueElementData::traceAfterDispatch(Visitor* visitor)
 {
     visitor->trace(m_presentationAttributeStyle);
     ElementData::traceAfterDispatch(visitor);
 }
 
 } // namespace blink