Bug 542928 - Add some more debugging logs to waitForFocus in order to track down the browser-chrome random orange; r=enndeakin

testing/mochitest/tests/SimpleTest/SimpleTest.js

@@ -298,6 +298,9 @@ SimpleTest.waitForFocus = function (callback, targetWindow, expectBlankPage) {
     }
 
     function waitForEvent(event) {
+        try {
+            debugFocusLog("waitForEvent called <type:" + event.type + ", target" + event.target + ">");
+
             // Check to make sure that this isn't a load event for a blank or
             // non-blank page that wasn't desired.
             if (event.type == "load" && (expectBlankPage != (event.target.location == "about:blank")))
@@ -307,6 +310,10 @@ SimpleTest.waitForFocus = function (callback, targetWindow, expectBlankPage) {
             var win = (event.type == "load") ? targetWindow : childTargetWindow;
             win.removeEventListener(event.type, waitForEvent, true);
             maybeRunTests();
+        } catch (e) {
+            SimpleTest.ok(false, "Exception caught in waitForEvent: " + e.message +
+                ", at: " + e.fileName + " (" + e.lineNumber + ")");
+        }
     }
 
     // If the current document is about:blank and we are not expecting a blank