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

Source/core/frame/Window.idl

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 83 matching lines @@
     [Replaceable] readonly attribute double scrollY;
     readonly attribute double pageXOffset;
     readonly attribute double pageYOffset;
 
     void scrollBy(double x, double y);
     [RuntimeEnabled=CSSOMSmoothScroll] void scrollBy([Default=Undefined] optional ScrollToOptions scrollToOptions);
     void scrollTo(double x, double y);
     [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;
 
     [Replaceable, DoNotCheckSecurity] readonly attribute unsigned long length;
 
     attribute DOMString name;
 
     attribute DOMString status;
     [MeasureAs=WindowDefaultStatus] attribute DOMString defaultStatus;
     // This attribute is an alias of defaultStatus and is necessary for legacy uses.
@@ skipping 93 matching lines @@
 // FIXME: make this typedef accurate once enough of http://crbug.com/240176
 // is in place.
 // FIXME: consider putting this typedef in an .idl file containing spec-wide
 // utility type definitions.
 typedef MessagePort Transferable;
 
 Window implements GlobalEventHandlers;
 Window implements WindowBase64;
 Window implements WindowEventHandlers;
 Window implements WindowTimers;