Disable incognito link if parental control is on

chrome/browser/prefs/incognito_mode_prefs.cc

 // 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.
 
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 
 #if defined(OS_WIN)
 #include "base/win/metro.h"
 #endif  // OS_WIN
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/android/chromium_application.h"
 #endif  // OS_ANDROID
 
+#if defined(OS_WIN)
+namespace {
+
+bool g_parental_control_on = false;
+
+} // empty namespace
+#endif  // OS_WIN
+
 // static
 bool IncognitoModePrefs::IntToAvailability(int in_value,
                                            Availability* out_value) {
   if (in_value < 0 || in_value >= AVAILABILITY_NUM_TYPES) {
     *out_value = ENABLED;
     return false;
   }
   *out_value = static_cast<Availability>(in_value);
   return true;
 }
@@ skipping 62 matching lines @@
 #if defined(OS_WIN)
   // Disable incognito mode windows if parental controls are on. This is only
   // for Windows Vista and above.
   return base::win::IsParentalControlActivityLoggingOn();
 #elif defined(OS_ANDROID)
   return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
 #else
   return false;
 #endif
 }
+
+#if defined(OS_WIN)
+void IncognitoModePrefs::InitializePlatformParentalControls() {
+  g_parental_control_on = base::win::IsParentalControlActivityLoggingOn();
+}
+#endif // OS_WIN
+
+bool IncognitoModePrefs::ArePlatformParentalControlsEnabledCached() {
+#if defined(OS_WIN)
+  return g_parental_control_on;
+#elif defined(OS_ANDROID)
+  return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
+#else
+  return false;
+#endif
+}
+