Add policy for fullscreen mode; disallow fullscreen in public sessions

chrome/browser/ui/browser_ui_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/ui/browser_ui_prefs.h"
 
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 173 matching lines @@
       false,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kClearPluginLSODataEnabled,
       true,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kHideWebStoreIcon,
       false,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+#if !defined(OS_MACOSX)
+  registry->RegisterBooleanPref(
+      prefs::kFullscreenAllowed,
+      true,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+#endif
 }
 
 void RegisterAppPrefs(const std::string& app_name, Profile* profile) {
   // We need to register the window position pref.
   //
   // TODO(mnissler): Use a separate pref name pointing to a single
   // dictionary instead. Also tracked as http://crbug.com/167256
   std::string window_pref(prefs::kBrowserWindowPlacement);
   window_pref.append("_");
   window_pref.append(app_name);
   PrefService* prefs = profile->GetPrefs();
   if (!prefs->FindPreference(window_pref.c_str())) {
     // TODO(joi): Do all registration up front.
     scoped_refptr<user_prefs::PrefRegistrySyncable> registry(
         static_cast<user_prefs::PrefRegistrySyncable*>(
             prefs->DeprecatedGetPrefRegistry()));
     registry->RegisterDictionaryPref(
         window_pref.c_str(), user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   }
 }
 
 
 }  // namespace chrome