Make fragment-only URLs always be document-local references

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

Index: third_party/WebKit/Source/core/svg/SVGUseElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGUseElement.cpp b/third_party/WebKit/Source/core/svg/SVGUseElement.cpp
index ca7d9571a75eccc6cc91bcecf7002f44c747269f..da6e03c65f057c4feb091c871a877def9c085c6b 100644
--- a/third_party/WebKit/Source/core/svg/SVGUseElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGUseElement.cpp
@@ -186,14 +186,14 @@ void SVGUseElement::collectStyleForPresentationAttribute(const QualifiedName& na
 
 void SVGUseElement::updateTargetReference()
 {
-    KURL resolvedUrl = document().completeURL(hrefString());
-    m_elementIdentifier = AtomicString(resolvedUrl.fragmentIdentifier());
-    m_elementIdentifierIsLocal = resolvedUrl.isNull()
-        || equalIgnoringFragmentIdentifier(resolvedUrl, document().url());
+    SVGURLReferenceResolver resolver(hrefString(), document());
+    m_elementIdentifier = resolver.fragmentIdentifier();
+    m_elementIdentifierIsLocal = resolver.isLocal();
     if (m_elementIdentifierIsLocal) {
         setDocumentResource(nullptr);
         return;
     }
+    KURL resolvedUrl = resolver.absoluteUrl();
     if (m_elementIdentifier.isEmpty()
         || (m_resource && equalIgnoringFragmentIdentifier(resolvedUrl, m_resource->url())))
         return;