events: keycodes: Remove the stateless singleton instance of KeycodeConverter

chrome/browser/chromeos/input_method/input_method_engine.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/chromeos/input_method/input_method_engine.h"
 
 #undef FocusIn
 #undef FocusOut
 #undef RootWindow
 #include <map>
@@ skipping 119 matching lines @@
 
 void GetExtensionKeyboardEventFromKeyEvent(
     const ui::KeyEvent& event,
     InputMethodEngine::KeyboardEvent* ext_event) {
   DCHECK(event.type() == ui::ET_KEY_RELEASED ||
          event.type() == ui::ET_KEY_PRESSED);
   DCHECK(ext_event);
   ext_event->type = (event.type() == ui::ET_KEY_RELEASED) ? "keyup" : "keydown";
 
   std::string dom_code = event.code();
-  if (dom_code ==
-      ui::KeycodeConverter::GetInstance()->InvalidKeyboardEventCode())
+  if (dom_code == ui::KeycodeConverter::InvalidKeyboardEventCode())
     dom_code = ui::KeyboardCodeToDomKeycode(event.key_code());
   ext_event->code = dom_code;
   ext_event->key_code = static_cast<int>(event.key_code());
   ext_event->alt_key = event.IsAltDown();
   ext_event->ctrl_key = event.IsControlDown();
   ext_event->shift_key = event.IsShiftDown();
   ext_event->caps_lock = event.IsCapsLockDown();
   ext_event->key = GetKeyFromEvent(event);
 }
 
@@ skipping 522 matching lines @@
           // TODO(nona): Implement it.
           break;
       }
     }
   }
 
   // TODO(nona): Support item.children.
 }
 
 }  // namespace chromeos