text: // Copyright 2017 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_CHROMEOS_EVENTS_MODIFIER_KEY_H_
  #define UI_CHROMEOS_EVENTS_MODIFIER_KEY_H_
  
  namespace ui {
  namespace chromeos {
  
  enum class ModifierKey : int {
    kSearchKey = 0,  // Customizable.
    kControlKey,     // Customizable.
    kAltKey,         // Customizable.
    kVoidKey,
    kCapsLockKey,   // Customizable.
    kEscapeKey,     // Customizable.
    kBackspaceKey,  // Customizable.
    // IMPORTANT: Add new keys to the end, because the keys may have been stored
    // in user preferences.
    kNumModifierKeys,
  };
  
  }  // namespace chromeos
  }  // namespace ui
  
  #endif  // UI_CHROMEOS_EVENTS_MODIFIER_KEY_H_
  