Sync the DOM* geometry interfaces with the spec

Source/core/dom/DOMRect.idl

Index: Source/core/dom/DOMRect.idl
diff --git a/Source/core/dom/DOMRect.idl b/Source/core/dom/DOMRect.idl
index 8a0577841333f05cf296f21482a1ef7397b22f5b..dff6f242a873a3596430283da87a1d74e2c0fe4e 100644
--- a/Source/core/dom/DOMRect.idl
+++ b/Source/core/dom/DOMRect.idl
@@ -2,11 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// http://dev.w3.org/fxtf/geometry/#DOMRect
+
 [
     Constructor(optional unrestricted double x = 0,
                 optional unrestricted double y = 0,
                 optional unrestricted double width = 0,
                 optional unrestricted double height = 0),
+    // FIXME: Exposed=(Window,Worker)
     RuntimeEnabled=GeometryInterfaces,
 ] interface DOMRect : DOMRectReadOnly {
     attribute unrestricted double x;