Added code so renderer would cleanly exit.

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_
 #pragma once
 
@@ skipping 138 matching lines @@
 extern const char kPpapiPluginLauncher[];
 CONTENT_EXPORT extern const char kPpapiPluginProcess[];
 extern const char kPpapiStartupDialog[];
 extern const char kProcessPerSite[];
 CONTENT_EXPORT extern const char kProcessPerTab[];
 CONTENT_EXPORT extern const char kProcessType[];
 CONTENT_EXPORT extern const char kRecordMode[];
 CONTENT_EXPORT extern const char kRegisterPepperPlugins[];
 CONTENT_EXPORT extern const char kRemoteDebuggingPort[];
 CONTENT_EXPORT extern const char kRendererAssertTest[];
+#if defined(OS_POSIX)
+extern const char kRendererCleanExit[];
+#endif
 extern const char kRendererCmdPrefix[];
 CONTENT_EXPORT extern const char kRendererCrashTest[];
 CONTENT_EXPORT extern const char kRendererProcess[];
 extern const char kRendererProcessLimit[];
 extern const char kRendererStartupDialog[];
 // TODO(jam): this doesn't belong in content.
 CONTENT_EXPORT extern const char kServiceProcess[];
 extern const char kShowCompositedLayerBorders[];
 extern const char kShowCompositedLayerTree[];
 extern const char kShowFPSCounter[];
@@ skipping 36 matching lines @@
 
 #if defined(USE_AURA)
 CONTENT_EXPORT extern const char kFlingTapSuppressMaxDown[];
 CONTENT_EXPORT extern const char kFlingTapSuppressMaxGap[];
 CONTENT_EXPORT extern const char kTestCompositor[];
 #endif
 
 }  // namespace switches
 
 #endif  // CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_