Add login screen locale and input method device policies

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

 // Copyright 2013 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/ash/system_tray_delegate_chromeos.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 460 matching lines @@
       GetCurrentInputMethodMenuItemList();
   for (size_t i = 0; i < menu_list.size(); ++i) {
     ash::IMEPropertyInfo property;
     property.key = menu_list[i].key;
     property.name = base::UTF8ToUTF16(menu_list[i].label);
     property.selected = menu_list[i].is_selection_item_checked;
     list->push_back(property);
   }
 }
 
+base::string16 SystemTrayDelegateChromeOS::GetIMEManagedMessage() {
+  input_method::InputMethodManager* manager =
+      input_method::InputMethodManager::Get();
+  if (manager->GetActiveIMEState()
+          ->GetAllowedKeyboardLayoutInputMethods()
+          .empty())
+    return base::string16();
+  else
+    return l10n_util::GetStringUTF16(IDS_OPTIONS_CONTROLLED_SETTING_POLICY);

[Peter Kasting, 2017/01/25 22:09:30]

Nit: Shorter, and avoids else after return:

  auto ime_state = input_method::InputMethodManager::Get()->GetActiveIMEState();
  return ime_state->GetAllowedKeyboardLayoutInputMethods().empty()
             ? base::string16()
             : l10n_util::GetStringUTF16(IDS_OPTIONS_CONTROLLED_SETTING_POLICY);

[pmarko, 2017/01/26 12:32:58]

Thanks, done.

+}
+
 void SystemTrayDelegateChromeOS::SwitchIME(const std::string& ime_id) {
   input_method::InputMethodManager::Get()
       ->GetActiveIMEState()
       ->ChangeInputMethod(ime_id, false /* show_message */);
   input_method::InputMethodSwitchRecorder::Get()->RecordSwitch(
       true /* by_tray_menu */);
 }
 
 void SystemTrayDelegateChromeOS::ActivateIMEProperty(const std::string& key) {
   input_method::InputMethodManager::Get()->ActivateInputMethodMenuItem(key);
@@ skipping 463 matching lines @@
   LOG(WARNING) << "SystemTrayDelegateChromeOS::GetChildUserMessage call while "
                << "ENABLE_SUPERVISED_USERS undefined.";
   return base::string16();
 }
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new SystemTrayDelegateChromeOS();
 }
 
 }  // namespace chromeos