CSS Animations: Remove unnecessary webkit prefixes from layout tests

third_party/WebKit/LayoutTests/animations/missing-keyframe-properties.html

Index: third_party/WebKit/LayoutTests/animations/missing-keyframe-properties.html
diff --git a/third_party/WebKit/LayoutTests/animations/missing-keyframe-properties.html b/third_party/WebKit/LayoutTests/animations/missing-keyframe-properties.html
index d392b65f21371ad40b1ddf13825f10c24ec15d68..a4e0929fd27829834b163a2ea5bccd45ffe25e58 100644
--- a/third_party/WebKit/LayoutTests/animations/missing-keyframe-properties.html
+++ b/third_party/WebKit/LayoutTests/animations/missing-keyframe-properties.html
@@ -9,14 +9,14 @@
       width: 100px;
       height: 100px;
       background-color: blue;
-      -webkit-animation-duration: 2s;
-      -webkit-animation-timing-function: linear;
+      animation-duration: 2s;
+      animation-timing-function: linear;
     }
     
     #box1 {
-      -webkit-animation-name: move;
+      animation-name: move;
     }
-    @-webkit-keyframes move {
+    @keyframes move {
         from {
           left: 0px;
         }
@@ -29,9 +29,9 @@
     }
 
     #box2 {
-      -webkit-animation-name: move2;
+      animation-name: move2;
     }
-    @-webkit-keyframes move2 {
+    @keyframes move2 {
         from {
           transform: translateX(0);
         }
@@ -50,11 +50,11 @@
     const expectedValues = [
       // [time, element-id, property, expected-value, tolerance]
       [1, "box1", "left", 200, 15],
-      [1, "box2", "webkitTransform.4", 200, 15],
+      [1, "box2", "transform.4", 200, 15],
       [0.5, "box1", "opacity", 0.5, 0.1],
       [1, "box1", "opacity", 0, 0.1],
       [1.5, "box1", "left", 300, 15],
-      [1.5, "box2", "webkitTransform.4", 300, 15],
+      [1.5, "box2", "transform.4", 300, 15],
       [1.5, "box1", "opacity", 0.5, 0.1],
     ];