Fix for flag-file covering Rollback reset option.

BUG=368844

Review URL: https://codereview.chromium.org/305153002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273884 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/webui/chromeos/login/reset_screen_handler.cc

@@ -140,7 +140,7 @@ void ResetScreenHandler::ChooseAndApplyShowScenario() {
 
 void ResetScreenHandler::OnRollbackFlagFileCheckDone(
     scoped_ptr<bool> file_exists) {
-  if (!file_exists && !CommandLine::ForCurrentProcess()->HasSwitch(
+  if (!(*file_exists) && !CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableRollbackOption)) {
     rollback_available_ = false;
     ShowWithParams();