Changed ComputedStyle's EVisibility to be an enum class and fixed naming

third_party/WebKit/Source/core/svg/SVGUseElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012 University of Szeged
  * Copyright (C) 2012 Renata Hodovan <reni@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 501 matching lines @@
 
     SVGElement& element = toSVGElement(*n);
 
     if (!element.isSVGGraphicsElement())
         return nullptr;
 
     if (!element.layoutObject())
         return nullptr;
 
     const ComputedStyle* style = element.layoutObject()->style();
-    if (!style || style->visibility() != VISIBLE)
+    if (!style || style->visibility() != EVisibility::Visible)
         return nullptr;
 
     // Spec: "If a <use> element is a child of a clipPath element, it must directly
     // reference <path>, <text> or basic shapes elements. Indirect references are an
     // error and the clipPath element must be ignored."
     // http://dev.w3.org/fxtf/css-masking-1/#the-clip-path
     if (!isDirectReference(element)) {
         // Spec: Indirect references are an error (14.3.5)
         return nullptr;
     }
@@ skipping 223 matching lines @@
 
     if (m_resource)
         m_resource->removeClient(this);
 
     m_resource = resource;
     if (m_resource)
         m_resource->addClient(this);
 }
 
 } // namespace blink