Mark supervised profiles as such immediately when they're created.

chrome/browser/profiles/profile_manager.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This class keeps track of the currently-active profiles in the runtime.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 
 #include <list>
@@ skipping 122 matching lines @@
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // If a profile with the given path is currently managed by this object,
   // return a pointer to the corresponding Profile object;
   // otherwise return NULL.
   Profile* GetProfileByPath(const base::FilePath& path) const;
 
   // Profile::Delegate implementation:
+  virtual void OnPrefsLoaded(Profile* profile) OVERRIDE;
   virtual void OnProfileCreated(Profile* profile,
                                 bool success,
                                 bool is_new_profile) OVERRIDE;
 
   // Add or remove a profile launcher to/from the list of launchers waiting for
   // new profiles to be created from the multi-profile menu.
   void AddProfileLauncher(NewProfileLauncher* profile_launcher);
   void RemoveProfileLauncher(NewProfileLauncher* profile_launcher);
 
   // Creates a new profile in the next available multiprofile directory.
@@ skipping 207 matching lines @@
 class ProfileManagerWithoutInit : public ProfileManager {
  public:
   explicit ProfileManagerWithoutInit(const base::FilePath& user_data_dir);
 
  protected:
   virtual void DoFinalInitForServices(Profile*, bool) OVERRIDE {}
   virtual void DoFinalInitLogging(Profile*) OVERRIDE {}
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_