Implement pref policy for disabling incognito mode.

chrome/browser/ui/browser_init.cc

 // Copyright (c) 2011 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_init.h"
 
 #include <algorithm>   // For max().
 
 #include "app/l10n_util.h"
 #include "base/environment.h"
@@ skipping 270 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(SessionCrashedInfoBarDelegate);
 };
 
 SessionStartupPref GetSessionStartupPref(const CommandLine& command_line,
                                          Profile* profile) {
   SessionStartupPref pref = SessionStartupPref::GetStartupPref(profile);
   if (command_line.HasSwitch(switches::kRestoreLastSession))
     pref.type = SessionStartupPref::LAST;
   if (command_line.HasSwitch(switches::kIncognito) &&
-      pref.type == SessionStartupPref::LAST) {
+      pref.type == SessionStartupPref::LAST &&
+      profile->GetPrefs()->GetBoolean(prefs::kIncognitoEnabled)) {
     // We don't store session information when incognito. If the user has
     // chosen to restore last session and launched incognito, fallback to
     // default launch behavior.
     pref.type = SessionStartupPref::DEFAULT;
   }
   return pref;
 }
 
 enum LaunchMode {
   LM_TO_BE_DECIDED = 0,       // Possibly direct launch or via a shortcut.
@@ skipping 90 matching lines @@
     // NetworkStateNotifier has to be initialized before Launching browser
     // because the page load can happen in parallel to this UI thread
     // and IO thread may access the NetworkStateNotifier.
     chromeos::CrosLibrary::Get()->GetNetworkLibrary()
         ->AddNetworkManagerObserver(
             chromeos::NetworkStateNotifier::GetInstance());
   }
 #endif
 
   // Continue with the off-the-record profile from here on if --incognito
-  if (command_line.HasSwitch(switches::kIncognito))
+  if (command_line.HasSwitch(switches::kIncognito) &&
+      profile->GetPrefs()->GetBoolean(prefs::kIncognitoEnabled)) {
     profile = profile->GetOffTheRecordProfile();
+  }
 
   BrowserInit::LaunchWithProfile lwp(cur_dir, command_line, this);
   bool launched = lwp.Launch(profile, process_startup);
   in_startup = false;
 
   if (!launched) {
     LOG(ERROR) << "launch error";
     if (return_code)
       *return_code = ResultCodes::INVALID_CMDLINE_URL;
     return false;
@@ skipping 682 matching lines @@
     return false;
   automation->SetExpectedTabCount(expected_tabs);
 
   AutomationProviderList* list =
       g_browser_process->InitAutomationProviderList();
   DCHECK(list);
   list->AddProvider(automation);
 
   return true;
 }