Tests added for user-listing on sign-in screen.

chrome/browser/chromeos/login/users/fake_user_manager.h

Index: chrome/browser/chromeos/login/users/fake_user_manager.h
diff --git a/chrome/browser/chromeos/login/users/fake_user_manager.h b/chrome/browser/chromeos/login/users/fake_user_manager.h
index 36be3f3b1b77cc4b53078f7b2e27282b40bf2951..5d938349a5d41585015f2aec61d821fae9c169bd 100644
--- a/chrome/browser/chromeos/login/users/fake_user_manager.h
+++ b/chrome/browser/chromeos/login/users/fake_user_manager.h
@@ -31,6 +31,9 @@ class FakeUserManager : public UserManager {
   // Create and add a kiosk app user.
   void AddKioskAppUser(const std::string& kiosk_app_username);
 
+  // Create and add a public account user.
+  const User* AddPublicAccountUser(const std::string& email);
+
   // Calculates the user name hash and calls UserLoggedIn to login a user.
   void LoginUser(const std::string& email);
 
@@ -66,7 +69,7 @@ class FakeUserManager : public UserManager {
   virtual void RestoreActiveSessions() OVERRIDE {}
   virtual void RemoveUser(const std::string& email,
       RemoveUserDelegate* delegate) OVERRIDE {}
-  virtual void RemoveUserFromList(const std::string& email) OVERRIDE {}
+  virtual void RemoveUserFromList(const std::string& email) OVERRIDE;
   virtual bool IsKnownUser(const std::string& email) const OVERRIDE;
   virtual const User* FindUser(const std::string& email) const OVERRIDE;
   virtual User* FindUserAndModify(const std::string& email) OVERRIDE;