Fixed browser crash when using Debug build:

chrome/common/chrome_switches.cc

 // 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.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 544 matching lines @@
 // matches any pattern. If the value starts with !, a program will be debugged
 // if manifest URL does not match any pattern.
 const char kNaClDebugMask[]                 = "nacl-debug-mask";
 
 // Enables hardware exception handling via debugger process.
 const char kEnableNaClExceptionHandling[]   = "enable-nacl-exception-handling";
 
 // Enables the native messaging extensions API.
 const char kEnableNativeMessaging[]         = "enable-native-messaging";
 
+// Enables the network-related benchmarking extensions.
+const char kEnableNetBenchmarking[]            = "enable-net-benchmarking";
+
 // Enables the new Autofill UI, which is part of the browser process rather than
 // part of the renderer process.  http://crbug.com/51644
 const char kEnableNewAutofillUi[]           = "enable-new-autofill-ui";
 
 // Enables new Autofill heuristics, such as adding support for new field types.
 const char kEnableNewAutofillHeuristics[]   = "enable-new-autofill-heuristics";
 
 // Enables NPN and SPDY. In case server supports SPDY, browser will use SPDY.
 const char kEnableNpn[]                     = "enable-npn";
 
@@ skipping 1091 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