Make arguments to window.{move,resize}{To,By} non-optional

Source/core/frame/Window.idl

Index: Source/core/frame/Window.idl
diff --git a/Source/core/frame/Window.idl b/Source/core/frame/Window.idl
index 913fb986b95b342bdb6f85775bce354e61814c76..65d1d95c119b2ab10b0a6b994b4a820b3449e385 100644
--- a/Source/core/frame/Window.idl
+++ b/Source/core/frame/Window.idl
@@ -101,10 +101,10 @@
     [RuntimeEnabled=CSSOMSmoothScroll] void scrollTo([Default=Undefined] optional ScrollToOptions scrollToOptions);
     void scroll(double x, double y);
     [RuntimeEnabled=CSSOMSmoothScroll] void scroll([Default=Undefined] optional ScrollToOptions scrollOptions);
-    void moveBy(optional long x = 0, optional long y = 0);
-    void moveTo(optional long x, optional long y); // FIXME: Arguments should not be optional, or should have defaults.
-    void resizeBy(optional long x = 0, optional long y = 0);
-    void resizeTo(optional long width, optional long height); // FIXME: Arguments should not be optional, or should have defaults.
+    void moveBy(long x, long y);
+    void moveTo(long x, long y);
+    void resizeBy(long x, long y);
+    void resizeTo(long width, long height);
 
     [DoNotCheckSecurity] readonly attribute boolean closed;