[InputEvent] Update spec link for StaticRange.idl and use unsigned offset

third_party/WebKit/Source/core/dom/StaticRange.idl

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://discourse.wicg.io/t/proposal-staticrange-to-be-used-instead-of-range-for-new-apis/1472
+// https://garykac.github.io/staticrange/#interface-staticrange
 
 [
     Constructor,
     ConstructorCallWith=Document,
     Exposed=Window,
     RuntimeEnabled=InputEvent,
 ] interface StaticRange {
     attribute Node startContainer;
-    attribute long startOffset;
+    attribute unsigned long startOffset;
     attribute Node endContainer;
-    attribute long endOffset;
+    attribute unsigned long endOffset;
     readonly attribute boolean collapsed;
 
-    void setStart(Node node, long offset);
-    void setEnd(Node node, long offset);
+    void setStart(Node node, unsigned long offset);
+    void setEnd(Node node, unsigned long offset);
 
     [NewObject, RaisesException] Range toRange();

[foolip, 2017/04/04 04:17:12]

The spec never throws an exception, can you investigate?

[chongz, 2017/04/04 15:22:32]

It relies on |Range::setStart()| and |Range::setEnd()| which throws exception.

I noticed that Range's spec (https://dom.spec.whatwg.org/#interface-range)
doesn't throw exception, it that a bug as well?

[foolip, 2017/04/04 16:10:52]

I've filed https://github.com/garykac/staticrange/issues/4

DOM does throw exceptions in https://dom.spec.whatwg.org/#concept-range-bp-set,
are there others that are thrown by Blink but not covered by the spec?

 };