Adding about:flags option to enable guest mode.

chrome/common/chrome_switches.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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 336 matching lines @@
 extern const char kTrustedSpdyProxy[];
 extern const char kTryChromeAgain[];
 extern const char kUninstall[];
 extern const char kUseSpdy[];
 extern const char kUseGpuInTests[];
 extern const char kUseSpellingService[];
 extern const char kMaxSpdySessionsPerDomain[];
 extern const char kMaxSpdyConcurrentStreams[];
 extern const char kUserDataDir[];
 extern const char kUseWebBasedSigninFlow[];
+extern const char kEnableDesktopGuestMode[];

[Roger Tawa OOO till Jul 10th, 2012/12/03 15:57:42]

The constants in this file should be in alphabetical order (even though the grd
file does not really have an order).

[jwd, 2012/12/03 17:40:32]

Done.

 extern const char kVariationsServerURL[];
 extern const char kVersion[];
 extern const char kViewerConnection[];
 extern const char kVisitURLs[];
 extern const char kWebIntentsNativeServicesEnabled[];
 extern const char kWebIntentsInvocationEnabled[];
 extern const char kWhitelistedExtensionID[];
 extern const char kWindowPosition[];
 extern const char kWindowSize[];
 extern const char kWinHttpProxyResolver[];
@@ skipping 99 matching lines @@
 
 namespace chrome {
 
 // Returns true if the chrome style dialog is enabled.
 // TODO(sail): Remove this once the feature is fully baked.
 bool UseChromeStyleDialogs();
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_