[cros] Display emails of users are stored in a separate dictionary in Local State.

chrome/browser/chromeos/login/mock_authenticator.h

Index: chrome/browser/chromeos/login/mock_authenticator.h
diff --git a/chrome/browser/chromeos/login/mock_authenticator.h b/chrome/browser/chromeos/login/mock_authenticator.h
index 285c3438bbe0afb3a23b1c7b440a26f9142d378b..b3f8d19775950b6b5ce320a2784be2a9c1eb3441 100644
--- a/chrome/browser/chromeos/login/mock_authenticator.h
+++ b/chrome/browser/chromeos/login/mock_authenticator.h
@@ -89,6 +89,7 @@ class MockLoginUtils : public LoginUtils {
   virtual ~MockLoginUtils();
 
   virtual void PrepareProfile(const std::string& username,
+                              const std::string& display_email,
                               const std::string& password,
                               const GaiaAuthConsumer::ClientLoginResult& res,
                               bool pending_requests,
@@ -107,8 +108,7 @@ class MockLoginUtils : public LoginUtils {
 
   virtual void PrewarmAuthentication() OVERRIDE {}
 
-  virtual void RestoreAuthenticationSession(const std::string& user_name,
-                                            Profile* profile) OVERRIDE {}
+  virtual void RestoreAuthenticationSession(Profile* profile) OVERRIDE {}
 
   virtual void StartTokenServices(Profile* profile) OVERRIDE {}