Clean up expectations for animation helper tests.

LayoutTests/css3/filters/composited-during-animation.html

Index: LayoutTests/css3/filters/composited-during-animation.html
diff --git a/LayoutTests/css3/filters/composited-during-animation.html b/LayoutTests/css3/filters/composited-during-animation.html
index 3f462d09aaf83b45f783329880454b3f463ba86a..fba8270c19a7cff63020d27582d64691e345f4fa 100644
--- a/LayoutTests/css3/filters/composited-during-animation.html
+++ b/LayoutTests/css3/filters/composited-during-animation.html
@@ -133,8 +133,6 @@
     ];
 
     function runPreTest() {
-        var preResult = "";
-
         for (var i=0; i < preExpectedValues.length; i++) {
             var id = preExpectedValues[i][0];
             var prop = preExpectedValues[i][1];
@@ -142,11 +140,10 @@
             var element = document.getElementById(id);
             var computedStyle = window.getComputedStyle(element)[prop];
             if (computedStyle == expected)
-              preResult += "PASS: Element " + id + " had filter value " + expected + " before animation.<br>";
+              result += "PASS: Element " + id + " had filter value " + expected + " before animation.<br>";
             else
-              preResult += "FAIL: Element " + id + " had filter value " + computedStyle + " rather than " + expected + " before animation.<br>";
+              result += "FAIL: Element " + id + " had filter value " + computedStyle + " rather than " + expected + " before animation.<br>";
         }
-        document.getElementById("preresult").innerHTML = preResult;
 
         // Completed the pre-animation tests. Now start the animation.
         setTimeout(function () {