CSS Animations: Reduce usage of webkit prefix in layout tests

third_party/WebKit/LayoutTests/animations/multiple-animations.html

Index: third_party/WebKit/LayoutTests/animations/multiple-animations.html
diff --git a/third_party/WebKit/LayoutTests/animations/multiple-animations.html b/third_party/WebKit/LayoutTests/animations/multiple-animations.html
index d733cc1dee6ef5bb3cde75c641c3e8b4ae871a20..144b3b0d6eb101b7800bef2551e5c22e88db69e1 100644
--- a/third_party/WebKit/LayoutTests/animations/multiple-animations.html
+++ b/third_party/WebKit/LayoutTests/animations/multiple-animations.html
@@ -13,11 +13,11 @@
       height: 100px;
       width: 100px;
       background-color: blue;
-      -webkit-animation-duration: 2s;
-      -webkit-animation-timing-function: linear;
-      -webkit-animation-name: anim1;
+      animation-duration: 2s;
+      animation-timing-function: linear;
+      animation-name: anim1;
     }
-    @-webkit-keyframes anim1 {
+    @keyframes anim1 {
         from { left: 10px; }
         40% { left: 30px; }
         60% { left: 10px; }
@@ -30,11 +30,11 @@
       height: 100px;
       width: 100px;
       background-color: blue;
-      -webkit-animation-duration: 2s;
-      -webkit-animation-timing-function: linear;
-      -webkit-animation-name: anim2;
+      animation-duration: 2s;
+      animation-timing-function: linear;
+      animation-name: anim2;
     }
-    @-webkit-keyframes anim2 {
+    @keyframes anim2 {
         from { left: 10px; }
         50% { left: 30px; }
         to   { left: 20px; }