Control easy unlock by a field trial.

chrome/browser/ui/webui/options/browser_options_handler.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/ui/webui/options/browser_options_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "apps/app_window.h"
@@ skipping 577 matching lines @@
 #endif
 
   values->SetBoolean("cloudPrintShowMDnsOptions",
                      cloud_print_mdns_ui_enabled_);
 
   values->SetString("cloudPrintLearnMoreURL", chrome::kCloudPrintLearnMoreURL);
 
   values->SetString("languagesLearnMoreURL",
                     chrome::kLanguageSettingsLearnMoreUrl);
 
-  values->SetBoolean(
-      "easyUnlockEnabled",
-      CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableEasyUnlock));
+  values->SetBoolean("easyUnlockEnabled", easy_unlock::IsEnabled());
   values->SetString("easyUnlockLearnMoreURL", chrome::kEasyUnlockLearnMoreUrl);
   values->SetString("easyUnlockManagementURL",
                     chrome::kEasyUnlockManagementUrl);
 #if defined(OS_CHROMEOS)
   values->SetString("easyUnlockCheckboxLabel",
       l10n_util::GetStringFUTF16(
           IDS_OPTIONS_EASY_UNLOCK_CHECKBOX_LABEL_CHROMEOS,
           chromeos::GetChromeDeviceType()));
 
   values->SetBoolean(
@@ skipping 1194 matching lines @@
   extension = extensions::GetExtensionOverridingProxy(
       Profile::FromWebUI(web_ui()));
   AppendExtensionData("proxy", extension, &extension_controlled);
 
   web_ui()->CallJavascriptFunction("BrowserOptions.toggleExtensionIndicators",
                                    extension_controlled);
 #endif  // defined(OS_WIN)
 }
 
 }  // namespace options