Implement the "Configure modifier keys" drop-down

chrome/common/pref_names.cc

 // Copyright (c) 2010 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/common/pref_names.h"
 
 namespace prefs {
 
 // *************** PROFILE PREFS ***************
 // These are attached to the user profile
@@ skipping 319 matching lines @@
     L"settings.language.mozc_use_symbol_conversion";
 const wchar_t kLanguageMozcUseNumberConversion[] =
     L"settings.language.mozc_use_number_conversion";
 const wchar_t kLanguageMozcUseHistorySuggest[] =
     L"settings.language.mozc_use_history_suggest";
 const wchar_t kLanguageMozcUseDictionarySuggest[] =
     L"settings.language.mozc_use_dictionary_suggest";
 const wchar_t kLanguageMozcSuggestionsSize[] =
     L"settings.language.mozc_suggestions_size";
 
+// A integer pref which determines how we remap the XKB modifier keys.
+//   0: Do not remap.
+//   1: Swap Left Control and Left Alt.
+//   2: Swap Left Win (i.e. Search) and Left Control.
+// TODO(yusukes): Delete this pref when the final configration dialog (using
+// DOM UI) is implemented. See crosbug.com/2636.
+const wchar_t kLanguageXkbModifierRemap[] =
+    L"settings.language.xkb_modifier_remap";
+
 // A boolean pref which determines whether accessibility is enabled.
 const wchar_t kAccessibilityEnabled[] = L"settings.accessibility";
 
 // A boolean pref which turns on Advanced Filesystem
 // (USB support, SD card, etc).
 const wchar_t kLabsAdvancedFilesystemEnabled[] =
     L"settings.labs.advanced_filesystem";
 
 // A boolean pref which turns on the mediaplayer.
 const wchar_t kLabsMediaplayerEnabled[] = L"settings.labs.mediaplayer";
@@ skipping 586 matching lines @@
 // String specifying the proxy server. For a specification of the expected
 // syntax see net::ProxyConfig::ProxyRules::ParseFromString().
 const wchar_t kProxyServer[] = L"proxy.server";
 // URL to the proxy .pac file.
 const wchar_t kProxyPacUrl[] = L"proxy.pac_url";
 // String containing proxy bypass rules. For a specification of the
 // expected syntax see net::ProxyBypassRules::ParseFromString().
 const wchar_t kProxyBypassList[] = L"proxy.bypass_list";
 
 }  // namespace prefs