Add login screen locale and input method device policies

ui/base/ime/chromeos/input_method_manager.h

 // 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.
 
 #ifndef UI_BASE_IME_CHROMEOS_INPUT_METHOD_MANAGER_H_
 #define UI_BASE_IME_CHROMEOS_INPUT_METHOD_MANAGER_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 195 matching lines @@
     virtual void SwitchInputMethod(const ui::Accelerator& accelerator) = 0;
 
     // Gets the descriptor of the input method which is currently selected.
     virtual InputMethodDescriptor GetCurrentInputMethod() const = 0;
 
     // Updates the list of active input method IDs, and then starts or stops the
     // system input method framework as needed.
     virtual bool ReplaceEnabledInputMethods(
         const std::vector<std::string>& new_active_input_method_ids) = 0;
 
+    // Sets the currently allowed keyboard layout input methods (e.g. due to
+    // policy). Invalid input method ids are ignored. Passing an empty vector
+    // means that all keyboard layout input methods are allowed, which is the
+    // default.
+    // When allowed input methods are set, these are also automatically enabled.
+    virtual bool SetAllowedKeyboardLayoutInputMethods(
+        const std::vector<std::string>& allowed_input_method_ids) = 0;
+
+    // Returns the currently allowed keyboard layout input methods, as set by
+    // SetAllowedKeyboardLayoutInputMethodIds.
+    virtual const std::vector<std::string>&
+    GetAllowedKeyboardLayoutInputMethods() = 0;
+
    protected:
     friend base::RefCounted<InputMethodManager::State>;
 
     virtual ~State();
   };
 
   virtual ~InputMethodManager() {}
 
   // Gets the global instance of InputMethodManager. Initialize() must be called
   // first.
@@ skipping 81 matching lines @@
 
   // Returns whether the extra inputs: emoji, handwriting and voice inputs on
   // opt-in IME menu has been enabled.
   virtual bool IsEmojiHandwritingVoiceOnImeMenuEnabled() = 0;
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // UI_BASE_IME_CHROMEOS_INPUT_METHOD_MANAGER_H_