NOT FOR SUBMIT: use counters for jdm@

third_party/WebKit/Source/core/animation/AnimationEffectTiming.idl

 // Copyright 2014 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://w3c.github.io/web-animations/#the-animationeffecttiming-interface
 
 [
     RuntimeEnabled=WebAnimationsAPI,
 ] interface AnimationEffectTiming : AnimationEffectTimingReadOnly {
-    attribute double delay;
-    attribute double endDelay;
-    attribute DOMString fill;
-    [RaisesException=Setter] attribute double iterationStart;
-    [RaisesException=Setter] attribute unrestricted double iterations;
-    [RaisesException=Setter] attribute (unrestricted double or DOMString) duration;
-    attribute DOMString direction;
-    [RaisesException=Setter] attribute DOMString easing;
+    [Measure] attribute double delay;
+    [Measure] attribute double endDelay;
+    [Measure] attribute DOMString fill;
+    [RaisesException=Setter, Measure] attribute double iterationStart;
+    [RaisesException=Setter, Measure] attribute unrestricted double iterations;
+    [RaisesException=Setter, Measure] attribute (unrestricted double or DOMString) duration;
+    [Measure] attribute DOMString direction;
+    [RaisesException=Setter, Measure] attribute DOMString easing;
 };