ChromeOS: Update browser option UI for automatic timezone detection.

chrome/browser/ui/webui/options/chromeos/shared_options_browsertest.cc

 // Copyright 2014 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 "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chromeos/login/login_manager_test.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
@@ skipping 100 matching lines @@
 
  protected:
   void CheckOptionsUI(const user_manager::User* user,
                       bool is_owner,
                       bool is_primary) {
     Browser* browser = CreateBrowserForUser(user);
     content::WebContents* contents =
         browser->tab_strip_model()->GetActiveWebContents();
 
     for (size_t i = 0; i < sizeof(kPrefTests) / sizeof(kPrefTests[0]); i++) {
-      CheckPreference(contents,
-                      kPrefTests[i].pref_name,
-                      !is_owner && kPrefTests[i].owner_only,
-                      !is_owner && kPrefTests[i].indicator ? "owner" :
-                                                             std::string());
+      bool disabled = !is_owner && kPrefTests[i].owner_only;
+      if (strcmp(kPrefTests[i].pref_name, kSystemTimezone) == 0) {
+        disabled = ProfileHelper::Get()
+                       ->GetProfileByUserUnsafe(user)
+                       ->GetPrefs()
+                       ->GetBoolean(prefs::kResolveTimezoneByGeolocation);
+      }
+
+      CheckPreference(
+          contents, kPrefTests[i].pref_name, disabled,
+          !is_owner && kPrefTests[i].indicator ? "owner" : std::string());
     }
     CheckBanner(contents, is_primary);
     CheckSharedSections(contents, is_primary);
     CheckAccountsOverlay(contents, is_owner);
   }
 
   // Creates a browser and navigates to the Settings page.
   Browser* CreateBrowserForUser(const user_manager::User* user) {
     Profile* profile = ProfileHelper::Get()->GetProfileByUserUnsafe(user);
     SigninManagerFactory::GetForProfile(profile)->
@@ skipping 286 matching lines @@
   content::WaitForLoadStop(contents);
   {
     SCOPED_TRACE("Screen lock false for both users");
     expected_value = false;
     CheckBooleanPreference(contents, prefs::kEnableAutoScreenLock, disabled,
                            empty_controlled, expected_value);
   }
 }
 
 }  // namespace chromeos