Move "zoomAndPan enabled" logic from SVGDocumentExtensions to SVGSVGElement

Source/core/svg/SVGSVGElement.cpp

Index: Source/core/svg/SVGSVGElement.cpp
diff --git a/Source/core/svg/SVGSVGElement.cpp b/Source/core/svg/SVGSVGElement.cpp
index 117feddae61fc20df439d2b6fcc9de39126e8dce..b1973777bc856540e3e48b1bcd27628bf945eed8 100644
--- a/Source/core/svg/SVGSVGElement.cpp
+++ b/Source/core/svg/SVGSVGElement.cpp
@@ -209,6 +209,14 @@ void SVGSVGElement::updateCurrentTranslate()
         object->setNeedsLayoutAndFullPaintInvalidation();
 }
 
+bool SVGSVGElement::zoomAndPanEnabled() const
+{
+    const SVGZoomAndPan* currentViewSpec = this;
+    if (m_useCurrentView)
+        currentViewSpec = m_viewSpec.get();
+    return currentViewSpec && currentViewSpec->zoomAndPan() == SVGZoomAndPanMagnify;
+}
+
 void SVGSVGElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (!nearestViewportElement()) {