1 files changed, 12 insertions, 31 deletions

diff --git a/Source/WebCore/svg/SVGVKernElement.cpp b/Source/WebCore/svg/SVGVKernElement.cpp
index 44e09fd79..51fad8a8f 100644
--- a/Source/WebCore/svg/SVGVKernElement.cpp
+++ b/Source/WebCore/svg/SVGVKernElement.cpp
@@ -35,48 +35,29 @@ inline SVGVKernElement::SVGVKernElement(const QualifiedName& tagName, Document&
     ASSERT(hasTagName(SVGNames::vkernTag));
 }
 
-PassRefPtr<SVGVKernElement> SVGVKernElement::create(const QualifiedName& tagName, Document& document)
+Ref<SVGVKernElement> SVGVKernElement::create(const QualifiedName& tagName, Document& document)
 {
-    return adoptRef(new SVGVKernElement(tagName, document));
+    return adoptRef(*new SVGVKernElement(tagName, document));
 }
 
-Node::InsertionNotificationRequest SVGVKernElement::insertedInto(ContainerNode& rootParent)
+bool SVGVKernElement::buildVerticalKerningPair(SVGKerningPair& kerningPair) const
 {
-    if (rootParent.inDocument()) {
-        ContainerNode* fontNode = parentNode();
-        if (fontNode && isSVGFontElement(fontNode))
-            toSVGFontElement(fontNode)->invalidateGlyphCache();
-    }
-
-    return SVGElement::insertedInto(rootParent);
-}
-
-void SVGVKernElement::removedFrom(ContainerNode& rootParent)
-{
-    ContainerNode* fontNode = parentNode();
-    if (fontNode && isSVGFontElement(fontNode))
-        toSVGFontElement(fontNode)->invalidateGlyphCache();
-
-    SVGElement::removedFrom(rootParent);
-}
-
-void SVGVKernElement::buildVerticalKerningPair(SVGKerningMap& kerningMap)
-{
-    String u1 = fastGetAttribute(SVGNames::u1Attr);
-    String g1 = fastGetAttribute(SVGNames::g1Attr);
-    String u2 = fastGetAttribute(SVGNames::u2Attr);
-    String g2 = fastGetAttribute(SVGNames::g2Attr);
+    String u1 = attributeWithoutSynchronization(SVGNames::u1Attr);
+    String g1 = attributeWithoutSynchronization(SVGNames::g1Attr);
+    String u2 = attributeWithoutSynchronization(SVGNames::u2Attr);
+    String g2 = attributeWithoutSynchronization(SVGNames::g2Attr);
     if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
-        return;
+        return false;
 
-    SVGKerningPair kerningPair;
     if (parseGlyphName(g1, kerningPair.glyphName1)
         && parseGlyphName(g2, kerningPair.glyphName2)
         && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
         && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
-        kerningPair.kerning = fastGetAttribute(SVGNames::kAttr).string().toFloat();
-        kerningMap.insert(kerningPair);
+        bool ok = false;
+        kerningPair.kerning = attributeWithoutSynchronization(SVGNames::kAttr).string().toFloat(&ok);
+        return ok;
     }
+    return false;
 }
 
 }