Fix crash when user presses send report before onload handler was called

chrome/browser/dom_ui/bug_report_ui.cc

Index: chrome/browser/dom_ui/bug_report_ui.cc
diff --git a/chrome/browser/dom_ui/bug_report_ui.cc b/chrome/browser/dom_ui/bug_report_ui.cc
index 4c92c73b765f6cc7db55d9e776baa033efe38990..2641aff45e15e7e85c3a057f7a5f18db9e4d76b5 100644
--- a/chrome/browser/dom_ui/bug_report_ui.cc
+++ b/chrome/browser/dom_ui/bug_report_ui.cc
@@ -653,6 +653,11 @@ void BugReportHandler::HandleRefreshSavedScreenshots(const ListValue*) {
 
 
 void BugReportHandler::HandleSendReport(const ListValue* list_value) {
+  if (!bug_report_) {
+    LOG(ERROR) << "Bug report hasn't been intialized yet.";
+    return;
+  }
+
   ListValue::const_iterator i = list_value->begin();
   if (i == list_value->end()) {
     LOG(ERROR) << "Incorrect data passed to sendReport.";