This change enables Chrome to load locale information for the extension. It d...

chrome/common/extensions/extension_constants.cc

 // Copyright (c) 2009 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/extensions/extension_constants.h"
 
 namespace extension_manifest_keys {
 
 const wchar_t* kBackground = L"background_page";
 const wchar_t* kContentScripts = L"content_scripts";
 const wchar_t* kCss = L"css";
+const wchar_t* kDefaultLocale = L"default_locale";
 const wchar_t* kDescription = L"description";
 const wchar_t* kIcons = L"icons";
 const wchar_t* kJs = L"js";
 const wchar_t* kMatches = L"matches";
 const wchar_t* kName = L"name";
 const wchar_t* kPageActionId = L"id";
 const wchar_t* kPageActions = L"page_actions";
 const wchar_t* kPageActionIcons = L"icons";
 const wchar_t* kPermissions = L"permissions";
 const wchar_t* kPlugins = L"plugins";
@@ skipping 108 matching lines @@
 const char* kInvalidThemeImages =
     "Invalid value for theme images - images must be strings.";
 const char* kInvalidThemeImagesMissing =
     "Am image specified in the theme is missing.";
 const char* kInvalidThemeColors =
     "Invalid value for theme colors - colors must be integers";
 const char* kInvalidThemeTints =
     "Invalid value for theme images - tints must be decimal numbers.";
 const char* kInvalidUpdateURL =
     "Invalid value for update url: '[*]'.";
+const char* kInvalidDefaultLocale =
+    "Invalid value for default locale - locale name must be a string.";
 const char* kThemesCannotContainExtensions =
     "A theme cannot contain extensions code.";
+const char* kLocalesNoDefaultLocaleSpecified =
+    "Localization used, but default_locale wasn't specified in the manifest.";
+const char* kLocalesNoValidLocaleNamesListed =
+    "No valid locale name could be found in _locales directory.";
 }  // namespace extension_manifest_errors