Allow using the namespace sandbox in zygote host.

content/public/common/content_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 "content" command-line switches.
 
 #ifndef CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_
 #define CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 155 matching lines @@
 CONTENT_EXPORT extern const char kLogGpuControlListDecisions[];
 CONTENT_EXPORT extern const char kLoggingLevel[];
 CONTENT_EXPORT extern const char kLogNetLog[];
 extern const char kLogPluginMessages[];
 extern const char kMaxUntiledLayerHeight[];
 extern const char kMaxUntiledLayerWidth[];
 extern const char kMemoryMetrics[];
 CONTENT_EXPORT extern const char kMuteAudio[];
 CONTENT_EXPORT extern const char kNoReferrers[];
 CONTENT_EXPORT extern const char kNoSandbox[];
+CONTENT_EXPORT extern const char kEnableNamespaceSandbox[];
 CONTENT_EXPORT extern const char kNumRasterThreads[];
 CONTENT_EXPORT extern const char kOverscrollHistoryNavigation[];
 extern const char kPluginLauncher[];
 CONTENT_EXPORT extern const char kPluginPath[];
 CONTENT_EXPORT extern const char kPluginProcess[];
 extern const char kPluginStartupDialog[];
 CONTENT_EXPORT extern const char kPpapiBrokerProcess[];
 CONTENT_EXPORT extern const char kPpapiFlashArgs[];
 CONTENT_EXPORT extern const char kPpapiInProcess[];
 extern const char kPpapiPluginLauncher[];
@@ skipping 109 matching lines @@
 #if defined(ENABLE_PLUGINS)
 CONTENT_EXPORT extern const char kEnablePluginPowerSaver[];
 #endif
 
 // 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  // CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_