add SVGElement, SVGGraphicsElement interfaces and SVGSVGElement element

components/script/dom/webidls/SVGSVGElement.webidl

@@ -0,0 +1,45 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// https://svgwg.org/svg2-draft/struct.html#InterfaceSVGSVGElement
+[Pref="dom.svg.enabled"]
+interface SVGSVGElement : SVGGraphicsElement {
+
+  //[SameObject] readonly attribute SVGAnimatedLength x;
+  //[SameObject] readonly attribute SVGAnimatedLength y;
+  //[SameObject] readonly attribute SVGAnimatedLength width;
+  //[SameObject] readonly attribute SVGAnimatedLength height;
+
+  //attribute float currentScale;
+  //[SameObject] readonly attribute DOMPointReadOnly currentTranslate;
+
+  //NodeList getIntersectionList(DOMRectReadOnly rect, SVGElement? referenceElement);
+  //NodeList getEnclosureList(DOMRectReadOnly rect, SVGElement? referenceElement);
+  //boolean checkIntersection(SVGElement element, DOMRectReadOnly rect);
+  //boolean checkEnclosure(SVGElement element, DOMRectReadOnly rect);
+
+  //void deselectAll();
+
+  //SVGNumber createSVGNumber();
+  //SVGLength createSVGLength();
+  //SVGAngle createSVGAngle();
+  //DOMPoint createSVGPoint();
+  //DOMMatrix createSVGMatrix();
+  //DOMRect createSVGRect();
+  //SVGTransform createSVGTransform();
+  //SVGTransform createSVGTransformFromMatrix(DOMMatrixReadOnly matrix);
+
+  //Element getElementById(DOMString elementId);
+
+  // Deprecated methods that have no effect when called,
+  // but which are kept for compatibility reasons.
+  //unsigned long suspendRedraw(unsigned long maxWaitMilliseconds);
+  //void unsuspendRedraw(unsigned long suspendHandleID);
+  //void unsuspendRedrawAll();
+  //void forceRedraw();
+};
+
+//SVGSVGElement implements SVGFitToViewBox;
+//SVGSVGElement implements SVGZoomAndPan;
+//SVGSVGElement implements WindowEventHandlers;