Move language detection to a component

chrome/common/translate/translate_util.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/common/translate/translate_util.h"
-
-#include "base/basictypes.h"
-#include "base/command_line.h"
-#include "chrome/common/chrome_switches.h"
-#include "url/gurl.h"
-
-namespace TranslateUtil {
-
-// Language code synonyms. Some languages have changed codes over the years
-// and sometimes the older codes are used, so we must see them as synonyms.
-struct LanguageCodeSynonym {
-  // Code used in supporting list of Translate.
-  const char* const translate_language;
-
-  // Code used in Chrome internal.
-  const char* const chrome_language;
-};
-
-// If this table is updated, please sync this with that in
-// chrome/browser/resources/options/language_options.js
-const LanguageCodeSynonym kLanguageCodeSynonyms[] = {
-  {"no", "nb"},
-  {"iw", "he"},
-  {"jw", "jv"},
-  {"tl", "fil"},
-};
-
-const char kSecurityOrigin[] = "https://translate.googleapis.com/";
-
-void ToTranslateLanguageSynonym(std::string* language) {
-  // Apply liner search here because number of items in the list is just four.
-  for (size_t i = 0; i < arraysize(kLanguageCodeSynonyms); ++i) {
-    if (language->compare(kLanguageCodeSynonyms[i].chrome_language) == 0) {
-      *language = std::string(kLanguageCodeSynonyms[i].translate_language);
-      break;
-    }
-  }
-}
-
-void ToChromeLanguageSynonym(std::string* language) {
-  // Apply liner search here because number of items in the list is just four.
-  for (size_t i = 0; i < arraysize(kLanguageCodeSynonyms); ++i) {
-    if (language->compare(kLanguageCodeSynonyms[i].translate_language) == 0) {
-      *language = std::string(kLanguageCodeSynonyms[i].chrome_language);
-      break;
-    }
-  }
-}
-
-GURL GetTranslateSecurityOrigin() {
-  std::string security_origin(kSecurityOrigin);
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
-  if (command_line->HasSwitch(switches::kTranslateSecurityOrigin)) {
-    security_origin =
-        command_line->GetSwitchValueASCII(switches::kTranslateSecurityOrigin);
-  }
-  return GURL(security_origin);
-}
-
-}  // namespace TranslateUtil