Allow remapping Search/Ctrl/Alt to Esc.

chromeos/ime/xkeyboard.h

 // 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.
 
 #ifndef CHROMEOS_IME_XKEYBOARD_H_
 #define CHROMEOS_IME_XKEYBOARD_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 14 matching lines @@
   kEnableLock,
   kDontChange,
 };
 
 enum ModifierKey {
   kSearchKey = 0,  // Customizable.
   kControlKey,  // Customizable.
   kAltKey,  // Customizable.
   kVoidKey,
   kCapsLockKey,
+  kEscapeKey,
   // IMPORTANT: You should update kCustomizableKeys[] in .cc file, if you
   // add a customizable key.
   kNumModifierKeys,
 };
 
 class InputMethodUtil;
 
 class CHROMEOS_EXPORT XKeyboard {
  public:
   virtual ~XKeyboard() {}
@@ skipping 79 matching lines @@
 
   // Note: At this moment, classes other than InputMethodManager should not
   // instantiate the XKeyboard class.
   static XKeyboard* Create();
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROMEOS_IME_XKEYBOARD_H_