Introduce isSVGFontElement() and isSVGImageElement(), and use them

Source/core/rendering/HitTestResult.cpp

 /*
  * Copyright (C) 2006, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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,
@@ skipping 23 matching lines @@
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/loader/cache/CachedImage.h"
 #include "core/page/Frame.h"
 #include "core/page/FrameTree.h"
 #include "core/platform/Scrollbar.h"
 #include "core/rendering/HitTestLocation.h"
 #include "core/rendering/RenderImage.h"
+#include "core/svg/SVGImageElement.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 HitTestResult::HitTestResult()
     : m_isOverWidget(false)
 {
 }
 
@@ skipping 228 matching lines @@
         return KURL();
 
     if (!(m_innerNonSharedNode->renderer() && m_innerNonSharedNode->renderer()->isImage()))
         return KURL();
 
     AtomicString urlString;
     if (m_innerNonSharedNode->hasTagName(embedTag)
         || m_innerNonSharedNode->hasTagName(imgTag)
         || m_innerNonSharedNode->hasTagName(inputTag)
         || m_innerNonSharedNode->hasTagName(objectTag)    
-        || m_innerNonSharedNode->hasTagName(SVGNames::imageTag)
+        || isSVGImageElement(m_innerNonSharedNode.get())
        ) {
         Element* element = toElement(m_innerNonSharedNode.get());
         urlString = element->imageSourceURL();
     } else
         return KURL();
 
     return m_innerNonSharedNode->document()->completeURL(stripLeadingAndTrailingHTMLSpaces(urlString));
 }
 
 KURL HitTestResult::absoluteMediaURL() const
@@ skipping 184 matching lines @@
 {
     NodeRenderingTraversal::ParentDetails details;
     for (Node* node = m_innerNode.get(); node; node = NodeRenderingTraversal::parent(node, &details))
         if (node->isElementNode())
             return toElement(node);
 
     return 0;
 }
 
 } // namespace WebCore