Mustash: Ignore --mash flag when comparing flags in UserSessionManager.

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"
 #include "build/build_config.h"
 #include "ppapi/features/features.h"
@@ skipping 1087 matching lines @@
 const char kWatcherProcess[]                = "watcher";
 
 // Enables custom-drawing the titlebar and tabstrip background so that it's not
 // a garish #FFFFFF like it is by default on Windows 10.
 const char kWindows10CustomTitlebar[]       = "windows10-custom-titlebar";
 
 // Indicates that chrome was launched to service a search request in Windows 8.
 const char kWindows8Search[]                = "windows8-search";
 #endif  // defined(OS_WIN)
 
+#if BUILDFLAG(ENABLE_PACKAGE_MASH_SERVICES)
+// Used to enable Mus+ash.
+const char kMash[]                          = "mash";
+#endif
+
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 // Enables support to debug printing subsystem.
 const char kDebugPrint[] = "debug-print";
 #endif
 
 #if BUILDFLAG(ENABLE_PLUGINS)
 // Specifies comma-separated list of extension ids or hosts to grant
 // access to CRX file system APIs.
 const char kAllowNaClCrxFsAPI[]             = "allow-nacl-crxfs-api";
 
@@ skipping 50 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR VERY NICE FLAGS 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