Remove unused LoginPerformer::Delegate setter and member.

BUG=NONE

Review URL: https://codereview.chromium.org/413133004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@285385 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/login/existing_user_controller.cc

@@ -447,12 +447,9 @@ void ExistingUserController::PerformLogin(
   // Use the same LoginPerformer for subsequent login as it has state
   // such as Authenticator instance.
   if (!login_performer_.get() || num_login_attempts_ <= 1) {
-    LoginPerformer::Delegate* delegate = this;
-    if (login_performer_delegate_.get())
-      delegate = login_performer_delegate_.get();
     // Only one instance of LoginPerformer should exist at a time.
     login_performer_.reset(NULL);
-    login_performer_.reset(new LoginPerformer(delegate));
+    login_performer_.reset(new LoginPerformer(this));
   }
 
   is_login_in_progress_ = true;

chrome/browser/chromeos/login/existing_user_controller.h

@@ -214,10 +214,6 @@ class ExistingUserController : public LoginDisplay::Delegate,
   void PerformLogin(const UserContext& user_context,
                     LoginPerformer::AuthorizationMode auth_mode);
 
-  void set_login_performer_delegate(LoginPerformer::Delegate* d) {
-    login_performer_delegate_.reset(d);
-  }
-
   // Updates the |login_display_| attached to this controller.
   void UpdateLoginDisplay(const user_manager::UserList& users);
 
@@ -236,10 +232,6 @@ class ExistingUserController : public LoginDisplay::Delegate,
   // Used to execute login operations.
   scoped_ptr<LoginPerformer> login_performer_;
 
-  // Delegate for login performer to be overridden by tests.
-  // |this| is used if |login_performer_delegate_| is NULL.
-  scoped_ptr<LoginPerformer::Delegate> login_performer_delegate_;
-
   // Delegate to forward all authentication status events to.
   // Tests can use this to receive authentication status events.
   AuthStatusConsumer* auth_status_consumer_;