CSS Animations: Reduce usage of webkit prefix in layout tests

third_party/WebKit/LayoutTests/animations/keyframe-timing-functions-multiple-properties.html

Index: third_party/WebKit/LayoutTests/animations/keyframe-timing-functions-multiple-properties.html
diff --git a/third_party/WebKit/LayoutTests/animations/keyframe-timing-functions-multiple-properties.html b/third_party/WebKit/LayoutTests/animations/keyframe-timing-functions-multiple-properties.html
index 22696dab960a6ab4ceeb6b6c2eacbf6a1418524d..3ea8c14989a325ace654765853bd44fd0475abc3 100644
--- a/third_party/WebKit/LayoutTests/animations/keyframe-timing-functions-multiple-properties.html
+++ b/third_party/WebKit/LayoutTests/animations/keyframe-timing-functions-multiple-properties.html
@@ -13,14 +13,14 @@
       height: 100px;
       width: 100px;
       background-color: blue;
-      -webkit-animation-duration: 2s;
-      -webkit-animation-timing-function: ease-in;
-      -webkit-animation-name: anim;
+      animation-duration: 2s;
+      animation-timing-function: ease-in;
+      animation-name: anim;
     }
-    @-webkit-keyframes anim {
+    @keyframes anim {
         from { left: 10px; top: 10px; }
-        40% { left: 30px; width: 300px; -webkit-animation-timing-function: ease-out; }
-        60% { top: 40px; height: 400px; -webkit-animation-timing-function: ease-in-out; }
+        40% { left: 30px; width: 300px; animation-timing-function: ease-out; }
+        60% { top: 40px; height: 400px; animation-timing-function: ease-in-out; }
         to  { left: 20px; top: 0px; }
     }
   </style>