Web Animations: Use of hyphens is no longer supported

third_party/WebKit/LayoutTests/animations/interpolation/resources/interpolation-test.js

 /*
  * Copyright (C) 2015 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 166 matching lines @@
 
   function loadScript(url) {
     return new Promise(function(resolve) {
       var script = document.createElement('script');
       script.src = url;
       script.onload = resolve;
       document.head.appendChild(script);
     });
   }
 
+  function toCamelCase(property) {
+    var i = property.length;
+    while ((i = property.lastIndexOf('-', i - 1)) !== -1) {
+      property = property.substring(0, i) + property[i + 1].toUpperCase() + property.substring(i + 2);
+    }
+    return property;
+  }
+
   function createTargetContainer(parent, className) {
     var targetContainer = createElement(parent);
     targetContainer.classList.add('container');
     var template = document.querySelector('#target-template');
     if (template) {
       targetContainer.appendChild(template.content.cloneNode(true));
     }
     var target = targetContainer.querySelector('.target') || targetContainer;
     target.classList.add('target', className);
     target.parentElement.classList.add('parent');
@@ skipping 135 matching lines @@
     return compositionTest.expectations.map(function(expectation) {
       var actualTargetContainer = createTargetContainer(testContainer, 'actual');
       var expectedTargetContainer = createTargetContainer(testContainer, 'expected');
       expectedTargetContainer.target.style[property] = expectation.is;
       var target = actualTargetContainer.target;
       target.style[property] = underlying;
       target.interpolate = function() {
         webAnimationsInterpolation.interpolateKeyframes([{
           offset: 0,
           composite: fromComposite,
-          [property]: from,
+          [toCamelCase(property)]: from,
         }, {
           offset: 1,
           composite: toComposite,
-          [property]: to,
+          [toCamelCase(property)]: to,
         }], expectation.at, target);
       };
       target.measure = function() {
         var actualValue = getComputedStyle(target)[property];
         test(function() {
           assert_equals(
             normalizeValue(actualValue),
             normalizeValue(getComputedStyle(expectedTargetContainer.target)[property]));
         }, `${testText} at (${expectation.at}) is [${sanitizeUrls(actualValue)}]`);
         if (rebaselineExpectation) {
@@ skipping 56 matching lines @@
   loadScript('../../resources/testharness.js').then(function() {
     return loadScript('../../resources/testharnessreport.js');
   }).then(function() {
     var asyncHandle = async_test('This test uses interpolation-test.js.')
     requestAnimationFrame(function() {
       runTests();
       asyncHandle.done()
     });
   });
 })();