[Blink-Workers]Set verbosity of the external exception handler.

third_party/WebKit/LayoutTests/fast/workers/worker-onerror-04.html

Index: third_party/WebKit/LayoutTests/fast/workers/worker-onerror-04.html
diff --git a/third_party/WebKit/LayoutTests/fast/workers/worker-onerror-04.html b/third_party/WebKit/LayoutTests/fast/workers/worker-onerror-04.html
index 8e8361b67dbd4bbdb897fd70f544a1cd40157c08..369c7db4060fe6bc5c579fc7b80fa5e4d73d2d2c 100644
--- a/third_party/WebKit/LayoutTests/fast/workers/worker-onerror-04.html
+++ b/third_party/WebKit/LayoutTests/fast/workers/worker-onerror-04.html
@@ -18,7 +18,7 @@
         foo.bar = 0;
     </script>
     <script>
-        description("This tests that unhandled exceptions in a worker's onerror handler trigger 'worker.onerror'.");
+        description("This tests that unhandled exceptions in a worker's onerror handler don't trigger 'worker.onerror'.");
 
         checkErrorEventInHandler([
             // foo.bar = 0 triggers an error that isn't handled.
@@ -28,13 +28,13 @@
                 lineno: 7,
                 colno: 9,
             },
-            // the error handler triggers an error
             {
-                message: "Uncaught ReferenceError: bar is not defined",
+                message: "Uncaught ReferenceError: foo is not defined",
                 filename: "[blob: URL]",
-                lineno: 3,
-                colno: 13,
+                lineno: 7,
+                colno: 9,
             }]);
+
     </script>
 </body>
 </html>