Refactor shutdown code to allow win/linux to run after last browser closes.

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 152 matching lines @@
 extern const char kInstallerTestBackup[];
 extern const char kInstallerTestBuild[];
 extern const char kInstallerTestClean[];
 extern const char kInstallerTestForce[];
 extern const char kInternalNaCl[];
 extern const char kInternalPepper[];
 extern const char kIssue35198CrxDirBrowser[];
 extern const char kIssue35198ExtraLogging[];
 extern const char kIssue35198Permission[];
 extern const char kJavaScriptFlags[];
+extern const char kKeepAliveForTest[];
 extern const char kLoadExtension[];
 extern const char kLoadPlugin[];
 extern const char kExtraPluginDir[];
 extern const char kLogFilterPrefix[];
 extern const char kLogPluginMessages[];
 extern const char kLoggingLevel[];
 extern const char kMakeDefaultBrowser[];
 extern const char kMediaCacheSize[];
 extern const char kMemoryProfiling[];
 extern const char kMessageLoopHistogrammer[];
@@ skipping 161 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_