The second argument of add/removeEventListener should be an object, null, or undefined

content/test/data/loader/async_resource_handler.html

Index: content/test/data/loader/async_resource_handler.html
diff --git a/content/test/data/loader/async_resource_handler.html b/content/test/data/loader/async_resource_handler.html
index 64b8c4d301293ee218ae3aaf8b7b56b5b54cf131..0b92be2c4c51a5057dc32d9874b7da7e795b8e29 100644
--- a/content/test/data/loader/async_resource_handler.html
+++ b/content/test/data/loader/async_resource_handler.html
@@ -35,7 +35,7 @@ function progressListener(e) {
   ranProgressHandler = true;
 }
 
-function completedUpload(e) {
+function onCompletedUpload(e) {
   completedUpload = true;
 }
 
@@ -68,7 +68,7 @@ function WaitForAsyncXHR(url, payloadSize) {
   asyncXHR.addEventListener('error', onError);
 
   asyncXHR.upload.addEventListener('progress', progressListener);
-  asyncXHR.upload.addEventListener('load', completedUpload);
+  asyncXHR.upload.addEventListener('load', onCompletedUpload);
 
   asyncXHR.open('POST', url, true);