ChromeOS: Time zone setting dropdown should be grayed out once we enable the Automatically resolve …

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 <set>
 #include <string>
 #include <vector>
 
@@ skipping 664 matching lines @@
   values->SetBoolean(
       "showWakeOnWifi",
       chromeos::WakeOnWifiManager::Get()->WakeOnWifiSupported() &&
       chromeos::switches::WakeOnWifiEnabled());
   const bool have_disable_time_zone_tracking_option_switch =
       base::CommandLine::ForCurrentProcess()->HasSwitch(
           chromeos::switches::kDisableTimeZoneTrackingOption);
   values->SetBoolean("enableTimeZoneTrackingOption",
                      !have_disable_time_zone_tracking_option_switch &&
                          !chromeos::system::HasSystemTimezonePolicy());
-  values->SetBoolean("resolveTimezoneByGeolocationInitialValue",
-                     Profile::FromWebUI(web_ui())->GetPrefs()->GetBoolean(
-                         prefs::kResolveTimezoneByGeolocation));
 #endif
 }
 
 #if defined(ENABLE_PRINT_PREVIEW)
 void BrowserOptionsHandler::RegisterCloudPrintValues(
     base::DictionaryValue* values) {
   values->SetString("cloudPrintOptionLabel",
                     l10n_util::GetStringFUTF16(
                         IDS_CLOUD_PRINT_CHROMEOS_OPTION_LABEL,
                         l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT)));
@@ skipping 276 matching lines @@
                    base::Unretained(this)));
     policy_registrar_->Observe(
         policy::key::kWallpaperImage,
         base::Bind(&BrowserOptionsHandler::OnWallpaperPolicyChanged,
                    base::Unretained(this)));
   }
   chromeos::CrosSettings::Get()->AddSettingsObserver(
       chromeos::kSystemTimezonePolicy,
       base::Bind(&BrowserOptionsHandler::OnSystemTimezonePolicyChanged,
                  weak_ptr_factory_.GetWeakPtr()));
+  profile_pref_registrar_.Add(
+      prefs::kResolveTimezoneByGeolocation,
+      base::Bind(&BrowserOptionsHandler::OnResolveTimezoneByGeolocationChanged,
+                 base::Unretained(this)));
 #else  // !defined(OS_CHROMEOS)
   profile_pref_registrar_.Add(
       prefs::kProxy,
       base::Bind(&BrowserOptionsHandler::SetupProxySettingsSection,
                  base::Unretained(this)));
 #endif  // !defined(OS_CHROMEOS)
 }
 
+#if defined(OS_CHROMEOS)
+void BrowserOptionsHandler::OnResolveTimezoneByGeolocationChanged() {
+  PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs();
+  const bool resolve_timezone_by_geolocation =
+      pref_service->GetBoolean(prefs::kResolveTimezoneByGeolocation);
+  web_ui()->CallJavascriptFunction(
+      "BrowserOptions.onResolveTimezoneByGeolocationChanged",
+      base::FundamentalValue(resolve_timezone_by_geolocation));
+}
+#endif  // defined(OS_CHROMEOS)
+
 void BrowserOptionsHandler::InitializePage() {
   page_initialized_ = true;
 
   OnTemplateURLServiceChanged();
 
   ObserveThemeChanged();
   OnStateChanged();
   UpdateDefaultBrowserState();
 
   SetupMetricsReportingSettingVisibility();
@@ skipping 31 matching lines @@
       chromeos::WallpaperManager::Get()->IsPolicyControlled(
           user_manager::UserManager::Get()->GetActiveUser()->email()));
 
   policy::ConsumerManagementService* consumer_management =
       g_browser_process->platform_part()->browser_policy_connector_chromeos()->
           GetConsumerManagementService();
   if (consumer_management) {
     OnConsumerManagementStatusChanged();
     consumer_management->AddObserver(this);
   }
+
+  OnResolveTimezoneByGeolocationChanged();
 #endif
 }
 
 // static
 void BrowserOptionsHandler::CheckAutoLaunch(
     base::WeakPtr<BrowserOptionsHandler> weak_this,
     const base::FilePath& profile_path) {
 #if defined(OS_WIN)
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 
@@ skipping 1124 matching lines @@
 void BrowserOptionsHandler::OnPolicyUpdated(const policy::PolicyNamespace& ns,
                                             const policy::PolicyMap& previous,
                                             const policy::PolicyMap& current) {
   std::set<std::string> different_keys;
   current.GetDifferingKeys(previous, &different_keys);
   if (ContainsKey(different_keys, policy::key::kMetricsReportingEnabled))
     SetupMetricsReportingCheckbox();
 }
 
 }  // namespace options