Add a couple useful SVG constructors.

client/html/src/SVGSVGElementWrappingImplementation.dart

Index: client/html/src/SVGSVGElementWrappingImplementation.dart
diff --git a/client/html/generated/src/wrapping/_SVGSVGElementWrappingImplementation.dart b/client/html/src/SVGSVGElementWrappingImplementation.dart
similarity index 96%
rename from client/html/generated/src/wrapping/_SVGSVGElementWrappingImplementation.dart
rename to client/html/src/SVGSVGElementWrappingImplementation.dart
index 214705269cd1d6225cd83e34adc6c4c911662451..ca6ca99a477194bfc12fdbe4ab9fc5699246e433 100644
--- a/client/html/generated/src/wrapping/_SVGSVGElementWrappingImplementation.dart
+++ b/client/html/src/SVGSVGElementWrappingImplementation.dart
@@ -2,11 +2,16 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// WARNING: Do not edit - generated code.
-
 class SVGSVGElementWrappingImplementation extends SVGElementWrappingImplementation implements SVGSVGElement {
   SVGSVGElementWrappingImplementation._wrap(ptr) : super._wrap(ptr) {}
 
+  factory SVGSVGElementWrappingImplementation() {
+    var el = new SVGElement.tag("svg");
+    // The SVG spec requires the version attribute to match the spec version
+    el.attributes['version'] = 1.1;
+    return el;
+  }
+
   String get contentScriptType() { return _ptr.contentScriptType; }
 
   void set contentScriptType(String value) { _ptr.contentScriptType = value; }