Add code attribute into onKeyEvent argument.

chrome/browser/extensions/api/input_ime/input_ime_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/input_ime/input_ime_api.h"
 
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/stl_util.h"
 #include "base/string_number_conversions.h"
@@ skipping 228 matching lines @@
       return;
 
     std::string request_id =
         extensions::InputImeEventRouter::GetInstance()->AddRequest(engine_id,
                                                                    key_data);
 
     DictionaryValue* dict = new DictionaryValue();
     dict->SetString("type", event.type);
     dict->SetString("requestId", request_id);
     dict->SetString("key", event.key);
+    dict->SetString("code", event.code);
     dict->SetBoolean("altKey", event.alt_key);
     dict->SetBoolean("ctrlKey", event.ctrl_key);
     dict->SetBoolean("shiftKey", event.shift_key);
 
     scoped_ptr<base::ListValue> args(new ListValue());
     args->Append(Value::CreateStringValue(engine_id));
     args->Append(dict);
 
     DispatchEventToExtension(profile_, extension_id_,
                              events::kOnKeyEvent, args.Pass());
@@ skipping 642 matching lines @@
       input_ime_event_router()->UnregisterAllImes(profile_, extension->id());
     }
   }
 }
 
 InputImeEventRouter* InputImeAPI::input_ime_event_router() {
   return InputImeEventRouter::GetInstance();
 }
 
 }  // namespace extensions