Re-landing mistakenly reverted CL http://codereview.chromium.org/2101021....

chrome/common/chrome_switches.h

 // Copyright (c) 2010 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 238 matching lines @@
 extern const char kLoginManager[];
 // TODO(avayvod): Remove this flag when it's unnecessary for testing
 // purposes.
 extern const char kLoginScreen[];
 extern const char kLoginScreenSize[];
 extern const char kTestLoadLibcros[];
 extern const char kProfile[];
 extern const char kLoginProfile[];
 extern const char kLoginUser[];
 extern const char kChromeosFrame[];
+extern const char kStartupManifest[];
 #endif
 
 #if defined(OS_WIN)
 extern const char kUseSChannel[];
 #endif
 
 #if defined(OS_POSIX)
 extern const char kEnableCrashReporter[];
 extern const char kNoProcessSingletonDialog[];
 #endif
@@ skipping 23 matching lines @@
 #endif
 // Return true if the switches indicate the seccomp sandbox is enabled.
 bool SeccompSandboxEnabled();
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_