Add login screen locale and input method device policies

ash/common/system/ime/tray_ime_chromeos.h

 // Copyright 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.
 
 #ifndef ASH_COMMON_SYSTEM_IME_TRAY_IME_CHROMEOS_H_
 #define ASH_COMMON_SYSTEM_IME_TRAY_IME_CHROMEOS_H_
 
 #include <stddef.h>
 
 #include "ash/common/system/accessibility_observer.h"
+#include "ash/common/system/chromeos/ime_menu/ime_list_view.h"
 #include "ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_observer.h"
 #include "ash/common/system/ime/ime_observer.h"
 #include "ash/common/system/tray/ime_info.h"
 #include "ash/common/system/tray/system_tray_item.h"
 #include "base/macros.h"
 
 namespace ash {
 
 namespace tray {
 class IMEDefaultView;
@@ skipping 37 matching lines @@
   void DestroyTrayView() override;
   void DestroyDefaultView() override;
   void DestroyDetailedView() override;
   void UpdateAfterLoginStatusChange(LoginStatus status) override;
   void UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) override;
 
   // Overridden from IMEObserver.
   void OnIMERefresh() override;
   void OnIMEMenuActivationChanged(bool is_active) override;
 
+  // Returns true input methods are managed by policy.
+  bool IsIMEManaged();
+
   // Whether the default view should be shown.
   bool ShouldDefaultViewBeVisible();
 
+  // Decides if a tray icon should be shown.
+  bool ShouldShowImeTrayItem(size_t ime_count);
+  // Mandates behavior for the single IME case for the detailed IME list
+  // sub-view.
+  ImeListView::SingleImeBehavior GetSingleImeBehavior();
+
   TrayItemView* tray_label_;
   tray::IMEDefaultView* default_;
   tray::IMEDetailedView* detailed_;
   // Whether the virtual keyboard is suppressed.
   bool keyboard_suppressed_;
   // Cached IME info.
   IMEInfoList ime_list_;
   IMEInfo current_ime_;
   IMEPropertyInfoList property_list_;
+  // If non-empty, a controlled-setting icon should be displayed with a tooltip
+  // text defined by this string.
+  base::string16 ime_managed_message_;
+
   // Whether the IME label and tray items should be visible.
   bool is_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayIME);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_IME_TRAY_IME_CHROMEOS_H_