cros: Add enterprise user session metrics

chrome/browser/chromeos/login/signin_specifics.h

Index: chrome/browser/chromeos/login/signin_specifics.h
diff --git a/chrome/browser/chromeos/login/signin_specifics.h b/chrome/browser/chromeos/login/signin_specifics.h
index da1014f5abfd41e80be4b1442c577e2f9d36a1ed..02404157b62ecad6656314b96e23e35dab90c190 100644
--- a/chrome/browser/chromeos/login/signin_specifics.h
+++ b/chrome/browser/chromeos/login/signin_specifics.h
@@ -10,19 +10,21 @@
 namespace chromeos {
 
 // This structure encapsulates some specific parameters of signin flows that are
-// not
-// general enough to be put to UserContext.
+// not general enough to be put to UserContext.
 struct SigninSpecifics {
-  SigninSpecifics();
+  SigninSpecifics() {}
 
   // Specifies url that should be shown during Guest signin.
   std::string guest_mode_url;
 
   // Specifies if locale should be passed to guest mode url.
-  bool guest_mode_url_append_locale;
+  bool guest_mode_url_append_locale = false;
 
   // Controls diagnostic mode for Kiosk App signin.
-  bool kiosk_diagnostic_mode;
+  bool kiosk_diagnostic_mode = false;
+
+  // Whether it is an automatic login.
+  bool is_auto_login = false;
 };
 
 }  // namespace chromeos