Count internal use of DOMImplementation::hasFeature() returning false

Source/core/svg/SVGTests.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 
 #include "core/svg/SVGTests.h"
 
 #include "core/SVGNames.h"
 #include "core/dom/DOMImplementation.h"
+#include "core/frame/UseCounter.h"
+#include "core/svg/SVGElement.h"
 #include "platform/Language.h"
-#include "core/svg/SVGElement.h"
 
 namespace blink {
 
 SVGTests::SVGTests(SVGElement* contextElement)
     : m_requiredFeatures(SVGStaticStringList::create(contextElement, SVGNames::requiredFeaturesAttr))
     , m_requiredExtensions(SVGStaticStringList::create(contextElement, SVGNames::requiredExtensionsAttr))
     , m_systemLanguage(SVGStaticStringList::create(contextElement, SVGNames::systemLanguageAttr))
 {
     ASSERT(contextElement);
 
     contextElement->addToPropertyMap(m_requiredFeatures);
     contextElement->addToPropertyMap(m_requiredExtensions);
     contextElement->addToPropertyMap(m_systemLanguage);
 }
 
 bool SVGTests::hasExtension(const String&)
 {
     // FIXME: Implement me!
     return false;
 }
 
-bool SVGTests::isValid() const
+bool SVGTests::isValid(Document& document) const
 {
     if (m_requiredFeatures->isSpecified()) {
         const Vector<String>& requiredFeatures = m_requiredFeatures->value()->values();
         Vector<String>::const_iterator it = requiredFeatures.begin();
         Vector<String>::const_iterator itEnd = requiredFeatures.end();
         for (; it != itEnd; ++it) {
-            if (it->isEmpty() || !DOMImplementation::hasFeature(*it, String()))
+            if (it->isEmpty())
                 return false;
+            if (!DOMImplementation::hasFeature(*it, String())) {
+                UseCounter::count(document, UseCounter::DOMImplementationHasFeatureReturnFalseInternal);
+                return false;
+            }
         }
     }
 
     if (m_systemLanguage->isSpecified()) {
         bool matchFound = false;
 
         const Vector<String>& systemLanguage = m_systemLanguage->value()->values();
         Vector<String>::const_iterator it = systemLanguage.begin();
         Vector<String>::const_iterator itEnd = systemLanguage.end();
         for (; it != itEnd; ++it) {
@@ skipping 41 matching lines @@
 }
 
 void SVGTests::addSupportedAttributes(HashSet<QualifiedName>& supportedAttributes)
 {
     supportedAttributes.add(SVGNames::requiredFeaturesAttr);
     supportedAttributes.add(SVGNames::requiredExtensionsAttr);
     supportedAttributes.add(SVGNames::systemLanguageAttr);
 }
 
 }