[Translate] Apply language synonyms to the target language

chrome/browser/translate/translate_manager.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/translate/translate_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
 #include "base/metrics/field_trial.h"
@@ skipping 708 matching lines @@
   BrowserWindow* window = browser ? browser->window() : NULL;
   TranslateBubbleFactory::Show(window, web_contents, view_state);
 #else
   NOTREACHED();
 #endif
 }
 
 // static
 std::string TranslateManager::GetTargetLanguage(PrefService* prefs) {
   std::string ui_lang =
-      GetLanguageCode(g_browser_process->GetApplicationLocale());
+      TranslatePrefs::ConvertLangCodeForTranslation(
+          GetLanguageCode(g_browser_process->GetApplicationLocale()));
+
   if (IsSupportedLanguage(ui_lang))
     return ui_lang;
 
   // Getting the accepted languages list
   std::string accept_langs_str = prefs->GetString(prefs::kAcceptLanguages);
 
   std::vector<std::string> accept_langs_list;
   base::SplitString(accept_langs_str, ',', &accept_langs_list);
 
   // Will translate to the first supported language on the Accepted Language
@@ skipping 32 matching lines @@
   // so we are more aggressive about showing the shortcut to never translate.
   #if defined(OS_ANDROID)
   config.never_translate_min_count = 1;
   #else
   config.never_translate_min_count = 3;
   #endif  // defined(OS_ANDROID)
 
   config.always_translate_min_count = 3;
   return config;
 }