Allow assertions to be enabled in Blink Release builds.

Source/core/accessibility/AXNodeObject.h

 /*
  * Copyright (C) 2012, 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 49 matching lines @@
     explicit AXNodeObject(Node*);
 
 public:
     static PassRefPtr<AXNodeObject> create(Node*);
     virtual ~AXNodeObject();
 
 protected:
     // Protected data.
     AccessibilityRole m_ariaRole;
     bool m_childrenDirty;
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     bool m_initialized;
 #endif
 
     virtual bool computeAccessibilityIsIgnored() const OVERRIDE;
     virtual AccessibilityRole determineAccessibilityRole();
 
     String accessibilityDescriptionForElements(WillBeHeapVector<RawPtrWillBeMember<Element> > &elements) const;
     void alterSliderValue(bool increase);
     String ariaAccessibilityDescription() const;
     void ariaLabeledByElements(WillBeHeapVector<RawPtrWillBeMember<Element> >& elements) const;
@@ skipping 127 matching lines @@
     void ariaLabeledByText(Vector<AccessibilityText>&) const;
     void changeValueByPercent(float percentChange);
     float stepValueForRange() const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXNodeObject, isAXNodeObject());
 
 } // namespace WebCore
 
 #endif // AXNodeObject_h