Send deprecation messages for prefixed gradients now that it's possible.

third_party/WebKit/LayoutTests/fast/gradients/css3-repeating-radial-gradients.html

Index: third_party/WebKit/LayoutTests/fast/gradients/css3-repeating-radial-gradients.html
diff --git a/third_party/WebKit/LayoutTests/fast/gradients/css3-repeating-radial-gradients.html b/third_party/WebKit/LayoutTests/fast/gradients/css3-repeating-radial-gradients.html
index 32bf5990ffd35fabe85b115ea7e2c7a35b26125f..9bf430633ab734bb73abfdd93012d7a585b922ff 100644
--- a/third_party/WebKit/LayoutTests/fast/gradients/css3-repeating-radial-gradients.html
+++ b/third_party/WebKit/LayoutTests/fast/gradients/css3-repeating-radial-gradients.html
@@ -13,48 +13,39 @@
     }
 
     .radial1 {
-      background-image: -webkit-repeating-radial-gradient(white, black 20%);
-      background-image: -moz-repeating-radial-gradient(white, black 20%);
+      background-image: repeating-radial-gradient(white, black 20%);
     }
     
     .radial2 {
-      background-image: -webkit-repeating-radial-gradient(white 80%, black);
-      background-image: -moz-repeating-radial-gradient(white 80%, black);
+      background-image: repeating-radial-gradient(white 80%, black);
     }
 
     .radial3 {
-      background-image: -webkit-repeating-radial-gradient(top left, red, blue 20px, red 40px);
-      background-image: -moz-repeating-radial-gradient(top left, red, blue 20px, red 40px);
+      background-image: repeating-radial-gradient(at top left, red, blue 20px, red 40px);
     }
 
     .radial4 {
-      background-image: -webkit-repeating-radial-gradient(bottom left, red 10%, blue 30%);
-      background-image: -moz-repeating-radial-gradient(bottom left, red 10%, blue 30%);
+      background-image: repeating-radial-gradient(at bottom left, red 10%, blue 30%);
     }
 
     .radial5 {
-      background-image: -webkit-repeating-radial-gradient(left, red -10%, blue -5%);
-      background-image: -moz-repeating-radial-gradient(left, red -10%, blue -5%);
+      background-image: repeating-radial-gradient(at left, red -10%, blue -5%);
     }
 
     .radial6 {
-      background-image: -webkit-repeating-radial-gradient(left, red -10%, blue 105%);
-      background-image: -moz-repeating-radial-gradient(left, red -10%, blue 105%);
+      background-image: repeating-radial-gradient(at left, red -10%, blue 105%);
     }
 
     .radial7 {
-      background-image: -webkit-repeating-radial-gradient(left, red 90%, blue 105%);
-      background-image: -moz-repeating-radial-gradient(left, red 90%, blue 105%);
+      background-image: repeating-radial-gradient(at left, red 90%, blue 105%);
     }
 
     .radial8 {
-      background-image: -webkit-repeating-radial-gradient(top, red 2em, blue 3em);
-      background-image: -moz-repeating-radial-gradient(top, red 2em, blue 3em);
+      background-image: repeating-radial-gradient(at top, red 2em, blue 3em);
     }
 
     .radial9 {
-      background-image: -webkit-repeating-radial-gradient(left, circle, red, orange, yellow, green, blue, red 60px);
-      background-image: -moz-repeating-radial-gradient(left, circle, red, orange, yellow, green, blue, red 60px);
+      background-image: repeating-radial-gradient(circle at left, red, orange, yellow, green, blue, red 60px);
     }
 
   </style>