Remove display() from compositing/ LayoutTests

LayoutTests/compositing/iframes/iframe-content-flipping.html

Index: LayoutTests/compositing/iframes/iframe-content-flipping.html
diff --git a/LayoutTests/compositing/iframes/iframe-content-flipping.html b/LayoutTests/compositing/iframes/iframe-content-flipping.html
index c06b47e4aa06b7cebb717be3a3dcddc9defa4876..37949e7ca7c052b9cc04473d1599fe40e901c10a 100644
--- a/LayoutTests/compositing/iframes/iframe-content-flipping.html
+++ b/LayoutTests/compositing/iframes/iframe-content-flipping.html
@@ -15,13 +15,18 @@
     }
     
   </style>
+  <script src="../../resources/run-after-display.js"></script>
   <script type="text/javascript" charset="utf-8">
     function doTest()
     {
       if (window.testRunner)
-        testRunner.display();
+        testRunner.waitUntilDone();
 
-      document.getElementById('iframe').className = 'composited';
+      runAfterDisplay(function() {
+        document.getElementById('iframe').className = 'composited';
+        if (window.testRunner)
+          testRunner.notifyDone();
+      });
     }
     
     window.addEventListener('load', doTest, false);