Use ExecuteJavascriptInWebFrameNotifyResult to return results even in error condition

chrome/test/data/webui/sample_downloads.js

Index: chrome/test/data/webui/sample_downloads.js
diff --git a/chrome/test/data/webui/sample_downloads.js b/chrome/test/data/webui/sample_downloads.js
index 0d976f3633252cc0864e7e382c6cc16f64f7af2a..5d4dad9d636a33d5e706018ca98c8ec81d93f50f 100644
--- a/chrome/test/data/webui/sample_downloads.js
+++ b/chrome/test/data/webui/sample_downloads.js
@@ -8,6 +8,11 @@ function testAssertFalse() {
   assertFalse(false);
 }
 
+function FAILS_testAssertFalse() {
+  assertFalse(true);
+  assertFalse(false);
+}
+
 function testInitialFocus() {
   assertTrue(document.activeElement.id == 'term', '');
 }