Owner flags storage should not save the flags names but the actual switches.

chrome/browser/chrome_browser_main.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/browser/chrome_browser_main.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 880 matching lines @@
   // affected by experiment flags (--touch-optimized-ui in particular). Not
   // needed on Android as there aren't experimental flags.
   // On ChromeOS system level flags are applied from the device settings from
   // the session manager.
   {
     TRACE_EVENT0("startup",
         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
     about_flags::PrefServiceFlagsStorage flags_storage_(
         g_browser_process->local_state());
     about_flags::ConvertFlagsToSwitches(&flags_storage_,
-                                        CommandLine::ForCurrentProcess());
+                                        CommandLine::ForCurrentProcess(),
+                                        about_flags::kAddSentinels);
   }
 #endif
 
   local_state_->UpdateCommandLinePrefStore(
       new CommandLinePrefStore(CommandLine::ForCurrentProcess()));
 
   // Reset the command line in the crash report details, since we may have
   // just changed it to include experiments.
   child_process_logging::SetCommandLine(CommandLine::ForCurrentProcess());
 
@@ skipping 783 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif
 #endif
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }