Unprefix usage of -webkit-transform in tests

ManualTests/no-repaint-after-wake-from-sleep.html

Index: ManualTests/no-repaint-after-wake-from-sleep.html
diff --git a/ManualTests/no-repaint-after-wake-from-sleep.html b/ManualTests/no-repaint-after-wake-from-sleep.html
index 0c0f16153548df5f228abc17db2cbf00c09b179c..4d322883dc441a4ff20c01544498b819fc15a516 100644
--- a/ManualTests/no-repaint-after-wake-from-sleep.html
+++ b/ManualTests/no-repaint-after-wake-from-sleep.html
@@ -110,21 +110,21 @@
 
       */
       @-webkit-keyframes x-spin {
-        0%    { -webkit-transform: rotateX(0deg); }
-        50%   { -webkit-transform: rotateX(180deg); }
-        100%  { -webkit-transform: rotateX(360deg); }
+        0%    { transform: rotateX(0deg); }
+        50%   { transform: rotateX(180deg); }
+        100%  { transform: rotateX(360deg); }
       }
 
       @-webkit-keyframes y-spin {
-        0%    { -webkit-transform: rotateY(0deg); }
-        50%   { -webkit-transform: rotateY(180deg); }
-        100%  { -webkit-transform: rotateY(360deg); }
+        0%    { transform: rotateY(0deg); }
+        50%   { transform: rotateY(180deg); }
+        100%  { transform: rotateY(360deg); }
       }
 
       @-webkit-keyframes back-y-spin {
-        0%    { -webkit-transform: rotateY(360deg); }
-        50%   { -webkit-transform: rotateY(180deg); }
-        100%  { -webkit-transform: rotateY(0deg); }
+        0%    { transform: rotateY(360deg); }
+        50%   { transform: rotateY(180deg); }
+        100%  { transform: rotateY(0deg); }
       }
     </style>