Move User Manager onto a System profile.

chrome/browser/ui/cocoa/profiles/user_manager_mac.h

Index: chrome/browser/ui/cocoa/profiles/user_manager_mac.h
diff --git a/chrome/browser/ui/cocoa/profiles/user_manager_mac.h b/chrome/browser/ui/cocoa/profiles/user_manager_mac.h
index 6a1080aae5e7e3cb9c3ea1c63300c11b1d73b39e..6de264822706df1d8d5ef578295ee6e585991efb 100644
--- a/chrome/browser/ui/cocoa/profiles/user_manager_mac.h
+++ b/chrome/browser/ui/cocoa/profiles/user_manager_mac.h
@@ -28,10 +28,10 @@ class UserManagerMac {
   // controller destroyed itself. Deletes the instance.
   void WindowWasClosed();
 
-  // Called from the UserManager class once the |guest_profile| is ready. Will
+  // Called from the UserManager class once the |system_profile| is ready. Will
   // construct a UserManagerMac object and show |url|.
-  static void OnGuestProfileCreated(Profile* guest_profile,
-                                    const std::string& url);
+  static void OnSystemProfileCreated(Profile* system_profile,
+                                     const std::string& url);
 
   UserManagerWindowController* window_controller() {
     return window_controller_.get();