Add UseCounters for the use of xml:lang in SVG

Source/core/svg/SVGTextContentElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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,
@@ skipping 12 matching lines @@
 
 #include "bindings/core/v8/ExceptionMessages.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/CSSPropertyNames.h"
 #include "core/CSSValueKeywords.h"
 #include "core/SVGNames.h"
 #include "core/XMLNames.h"
 #include "core/editing/FrameSelection.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/UseCounter.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/svg/SVGTextQuery.h"
 
 namespace blink {
 
 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGLengthAdjustType>()
 {
     DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
     if (entries.isEmpty()) {
         entries.append(std::make_pair(SVGLengthAdjustSpacing, "spacing"));
@@ skipping 174 matching lines @@
     return SVGGraphicsElement::isPresentationAttribute(name);
 }
 
 void SVGTextContentElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
 {
     if (!isSupportedAttribute(name))
         SVGGraphicsElement::collectStyleForPresentationAttribute(name, value, style);
     else if (name.matches(XMLNames::spaceAttr)) {
         DEFINE_STATIC_LOCAL(const AtomicString, preserveString, ("preserve", AtomicString::ConstructFromLiteral));
 
-        if (value == preserveString)
+        if (value == preserveString) {
+            UseCounter::count(document(), UseCounter::WhiteSpacePreFromXMLSpace);
             addPropertyToPresentationAttributeStyle(style, CSSPropertyWhiteSpace, CSSValuePre);
-        else
+        } else {
+            UseCounter::count(document(), UseCounter::WhiteSpaceNowrapFromXMLSpace);
             addPropertyToPresentationAttributeStyle(style, CSSPropertyWhiteSpace, CSSValueNowrap);
+        }
     }
 }
 
 void SVGTextContentElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     parseAttributeNew(name, value);
 }
 
 void SVGTextContentElement::svgAttributeChanged(const QualifiedName& attrName)
 {
@@ skipping 26 matching lines @@
 
     if (!renderer->isSVGText() && !renderer->isSVGInline())
         return 0;
 
     SVGElement* element = toSVGElement(renderer->node());
     ASSERT(element);
     return isSVGTextContentElement(*element) ? toSVGTextContentElement(element) : 0;
 }
 
 }