Web Animations: Use of hyphens is no longer supported

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

Index: third_party/WebKit/LayoutTests/animations/responsive/resources/responsive-test.js
diff --git a/third_party/WebKit/LayoutTests/animations/responsive/resources/responsive-test.js b/third_party/WebKit/LayoutTests/animations/responsive/resources/responsive-test.js
index c7e63e7c19f60ace1b09ba0a6e5d711343d8f7e4..05f803e2fa2211aa6491316bf7c594590cc58b4f 100644
--- a/third_party/WebKit/LayoutTests/animations/responsive/resources/responsive-test.js
+++ b/third_party/WebKit/LayoutTests/animations/responsive/resources/responsive-test.js
@@ -51,7 +51,7 @@ function assertCSSResponsive(options) {
     options,
     bindings: {
       prefixProperty(property) {
-        return property;
+        return toCamelCase(property);
       },
       createTargetContainer(container) {
         if (options.targetTag) {
@@ -163,6 +163,15 @@ function keyframeText(keyframe) {
   return isNeutralKeyframe(keyframe) ? 'neutral' : `[${keyframe}]`;
 }
 
+function toCamelCase(property) {
+  for (var i = property.length - 2; i > 0; --i) {
+    if (property[i] === '-') {
+      property = property.substring(0, i) + property[i + 1].toUpperCase() + property.substring(i + 2);
+    }
+  }
+  return property;
+}
+
 function createKeyframes(prefixedProperty, from, to) {
   var keyframes = [];
   if (!isNeutralKeyframe(from)) {