Image() constructor's arguments should not have default values

Source/core/html/HTMLImageElement.idl

Index: Source/core/html/HTMLImageElement.idl
diff --git a/Source/core/html/HTMLImageElement.idl b/Source/core/html/HTMLImageElement.idl
index cde8092146bd3d4fd29ec5d562d55d36105c97ca..3512a80387f7c718d559e50be9e726ea5570f12e 100644
--- a/Source/core/html/HTMLImageElement.idl
+++ b/Source/core/html/HTMLImageElement.idl
@@ -21,7 +21,7 @@
 // FIXME: NamedConstructor does not support optional without Default. Fortunately using Undefined makes
 // us use 0 which happens to be the default width and height anyway.
 [
-    NamedConstructor=Image([Default=Undefined] optional long width, [Default=Undefined] optional long height),
+    NamedConstructor=Image(optional long width, optional long height),
     ConstructorCallWith=Document
 ] interface HTMLImageElement : HTMLElement {
     [Reflect] attribute DOMString align;