Remove testRunner.display() from most compositing/ tests

LayoutTests/compositing/plugins/invalidate_rect.html

Index: LayoutTests/compositing/plugins/invalidate_rect.html
diff --git a/LayoutTests/compositing/plugins/invalidate_rect.html b/LayoutTests/compositing/plugins/invalidate_rect.html
index b2c35fcab2d0459731c3096c9e6149c11c4714b2..547059e2a12f438cf0479a6fa741c9b1fd161106 100644
--- a/LayoutTests/compositing/plugins/invalidate_rect.html
+++ b/LayoutTests/compositing/plugins/invalidate_rect.html
@@ -10,19 +10,23 @@
   </style>
 
   <script>
-    if (window.testRunner)
+    if (window.testRunner) {
         testRunner.dumpAsText();
+        testRunner.waitUntilDone();
+    }
 
     var paintCount = 0;
 
     function onLoad()
     {
-      testRunner.display();
-      paintCount = 0;
-      document.getElementById('testPlugin').invalidateRect(0, 0, 200, 200);
-      testRunner.displayInvalidatedRegion();
-      if (paintCount > 0)
-          document.getElementById('result').innerHTML = "SUCCESS";
+      runAfterDisplay(function() {
+        paintCount = 0;
+        document.getElementById('testPlugin').invalidateRect(0, 0, 200, 200);
+        testRunner.displayInvalidatedRegion();
+        if (paintCount > 0)
+            document.getElementById('result').innerHTML = "SUCCESS";
+        testRunner.notifyDone();
+      });
     }
 
     function didPaint()