Sync SVG interfaces with the specs

Source/core/svg/SVGZoomEvent.idl

Index: Source/core/svg/SVGZoomEvent.idl
diff --git a/Source/core/svg/SVGZoomEvent.idl b/Source/core/svg/SVGZoomEvent.idl
index 719739bc6cbe5104d777c32c426431ce6ac2516a..ca6ee4124a87f0d710f60bcd1f80717fecc449ce 100644
--- a/Source/core/svg/SVGZoomEvent.idl
+++ b/Source/core/svg/SVGZoomEvent.idl
@@ -23,9 +23,12 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+// http://www.w3.org/TR/SVG2/script.html#InterfaceSVGZoomEvent
+
 [
     DependentLifetime,
 ] interface SVGZoomEvent : UIEvent {
+    // TODO(philipj): SVGRect/SVGPoint should be DOMRectReadOnly/DOMPointReadOnly.
     readonly attribute SVGRect zoomRectScreen;
     readonly attribute float previousScale;
     readonly attribute SVGPoint previousTranslate;