[Mac] Add a confirm to quit experiment to about:flags.

chrome/common/chrome_switches.cc

 // 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.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 369 matching lines @@
 // until there's a server endpoint deployed.
 const char kEnableClearServerData[]         = "enable-clear-server-data";
 
 // This applies only when the process type is "service". Enables the
 // Cloud Print Proxy component within the service process.
 const char kEnableCloudPrintProxy[]         = "enable-cloud-print-proxy";
 
 // Enables the Cloud Print dialog hosting code.
 const char kEnableCloudPrint[]              = "enable-cloud-print";
 
+// Enable the Confirm to Quit experiment.
+const char kEnableConfirmToQuit[]           = "enable-confirm-to-quit";
+
 // Enables establishing a backup TCP connection if a specified timeout is
 // exceeded.
 const char kEnableConnectBackupJobs[]       = "enable-connect-backup-jobs";
 
 // Enable requests that webkit labels TargetIsPrefetch.  As of
 // writing only <link rel=prefetch...> but also eventually
 // Link: headers.
 const char kEnableContentPrefetch[]         = "enable-content-prefetch";
 
 // Whether default apps should be installed in this profile. This flag has no
@@ skipping 862 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead,
 // please put them in alphabetical order above, or in order inside the
 // appropriate ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches