Disable incognito link if parental control is on

chrome/browser/profiles/profile_io_data.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.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 192 matching lines @@
     return username_hash_;
   }
 #endif
 
   Profile::ProfileType profile_type() const {
     return profile_type_;
   }
 
   bool IsOffTheRecord() const;
 
+  // Returns whether parental controls have been enabled on the platform. This
+  // function simply returns a cached value and thus the result may be stale.
+  bool ArePlatformParentalControlsEnabledCached() const;
+
   IntegerPrefMember* incognito_availibility() const {
     return &incognito_availibility_pref_;
   }
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
   policy::PolicyHeaderIOHelper* policy_header_helper() const {
     return policy_header_helper_.get();
   }
 #endif
 
@@ skipping 363 matching lines @@
 
   // TODO(jhawkins): Remove once crbug.com/102004 is fixed.
   bool initialized_on_UI_thread_;
 
   const Profile::ProfileType profile_type_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_