Permission Action Reporting: Fix flaky Browsertest

chrome/browser/safe_browsing/mock_permission_report_sender.h

Index: chrome/browser/safe_browsing/mock_permission_report_sender.h
diff --git a/chrome/browser/safe_browsing/mock_permission_report_sender.h b/chrome/browser/safe_browsing/mock_permission_report_sender.h
index 5f5841def225e5da25e6d86e239a8ce4fc25fc0c..fc1c92ee8c469fa8566c606caa5f1e19e242df9e 100644
--- a/chrome/browser/safe_browsing/mock_permission_report_sender.h
+++ b/chrome/browser/safe_browsing/mock_permission_report_sender.h
@@ -25,10 +25,15 @@ class MockPermissionReportSender : public net::ReportSender {
 
   int GetAndResetNumberOfReportsSent();
 
+  void WaitForReportSent();
+
  private:
   GURL latest_report_uri_;
   std::string latest_report_;
   int number_of_reports_;
+  base::Closure quit_closure_;
+
+  void NotifyReportSentOnUIThread();
 
   DISALLOW_COPY_AND_ASSIGN(MockPermissionReportSender);
 };