Rename ExceptionCode constants to use the names in the spec (2/3)

Source/core/html/HTMLDialogElement.cpp

 /*
  * 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 40 matching lines @@
 }
 
 PassRefPtr<HTMLDialogElement> HTMLDialogElement::create(const QualifiedName& tagName, Document* document)
 {
     return adoptRef(new HTMLDialogElement(tagName, document));
 }
 
 void HTMLDialogElement::close(ExceptionCode& ec)
 {
     if (!fastHasAttribute(openAttr)) {
-        ec = INVALID_STATE_ERR;
+        ec = InvalidStateError;
         return;
     }
     setBooleanAttribute(openAttr, false);
     document()->removeFromTopLayer(this);
     m_topIsValid = false;
 }
 
 PassRefPtr<RenderStyle> HTMLDialogElement::customStyleForRenderer()
 {
     RefPtr<RenderStyle> originalStyle = originalStyleForRenderer();
@@ skipping 32 matching lines @@
 {
     if (fastHasAttribute(openAttr))
         return;
     setBooleanAttribute(openAttr, true);
     reposition();
 }
 
 void HTMLDialogElement::showModal(ExceptionCode& ec)
 {
     if (fastHasAttribute(openAttr) || !inDocument()) {
-        ec = INVALID_STATE_ERR;
+        ec = InvalidStateError;
         return;
     }
     document()->addToTopLayer(this);
     setBooleanAttribute(openAttr, true);
     reposition();
 }
 
 bool HTMLDialogElement::isPresentationAttribute(const QualifiedName& name) const
 {
     // FIXME: Workaround for <https://bugs.webkit.org/show_bug.cgi?id=91058>: modifying an attribute for which there is an attribute selector
     // in html.css sometimes does not trigger a style recalc.
     if (name == openAttr)
         return true;
 
     return HTMLElement::isPresentationAttribute(name);
 }
 
 bool HTMLDialogElement::shouldBeReparentedUnderRenderView(const RenderStyle* style) const
 {
     if (style && style->position() == AbsolutePosition)
         return true;
     return Element::shouldBeReparentedUnderRenderView(style);
 }
 
 } // namespace WebCore