Move language detection to chrome/common/.

chrome/renderer/translate/translate_helper.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_RENDERER_TRANSLATE_TRANSLATE_HELPER_H_
 #define CHROME_RENDERER_TRANSLATE_TRANSLATE_HELPER_H_
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
@@ skipping 69 matching lines @@
   // run successfully. Otherwise, returns empty string.
   virtual std::string ExecuteScriptAndGetStringResult(
       const std::string& script);
 
   // Executes the JavaScript code in |script| in the main frame of RenderView.
   // and returns the number returned by the script evaluation if the script was
   // run successfully. Otherwise, returns 0.0.
   virtual double ExecuteScriptAndGetDoubleResult(const std::string& script);
 
  private:
-  FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, IsValidLanguageCode);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, AdoptHtmlLang);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest,
                            CLDAgreeWithLanguageCodeHavingCountryCode);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest,
                            CLDDisagreeWithWrongLanguageCode);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest,
                            InvalidLanguageMetaTagProviding);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, LanguageCodeTypoCorrection);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, LanguageCodeSynonyms);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, ResetInvalidLanguageCode);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, SimilarLanguageCode);
   FRIEND_TEST_ALL_PREFIXES(TranslateHelperTest, WellKnownWrongConfiguration);
 
-  // Corrects language code if it contains well-known mistakes.
-  static void CorrectLanguageCodeTypo(std::string* code);
-
   // Converts language code to the one used in server supporting list.
   static void ConvertLanguageCodeSynonym(std::string* code);
 
-  // Checks if the language code's format is valid.
-  static bool IsValidLanguageCode(const std::string& code);
-
-  // Applies a series of language code modification in proper order.
-  static void ApplyLanguageCodeCorrection(std::string* code);
-
-  // Checks if languages are matched, or similar. This function returns true
-  // against a language pair containing a language which is difficult for CLD
-  // to distinguish.
-  static bool IsSameOrSimilarLanguages(const std::string& page_language,
-                                       const std::string& cld_language);
-
-  // Checks if languages pair is one of well-known pairs of wrong server
-  // configuration.
-  static bool MaybeServerWrongConfiguration(const std::string& page_language,
-                                            const std::string& cld_language);
-
-  // Checks if CLD can complement a sub code when the page language doesn't
-  // know the sub code.
-  static bool CanCLDComplementSubCode(const std::string& page_language,
-                                      const std::string& cld_language);
-
-  // Determines content page language from Content-Language code and contents.
-  static std::string DeterminePageLanguage(const std::string& code,
-                                           const std::string& html_lang,
-                                           const string16& contents,
-                                           std::string* cld_language,
-                                           bool* is_cld_reliable);
-
   // Returns whether the page associated with |document| is a candidate for
   // translation.  Some pages can explictly specify (via a meta-tag) that they
   // should not be translated.
   static bool IsTranslationAllowed(WebKit::WebDocument* document);
 
-#if defined(ENABLE_LANGUAGE_DETECTION)
-  // Returns the ISO 639_1 language code of the specified |text|, or 'unknown'
-  // if it failed.
-  // |is_cld_reliable| will be set as true if CLD says the detection is
-  // reliable.
-  static std::string DetermineTextLanguage(const string16& text,
-                                           bool* is_cld_reliable);
-#endif
-
   // RenderViewObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Cancels any translation that is currently being performed.  This does not
   // revert existing translations.
   void CancelPendingTranslation();
 
   // Checks if the current running page translation is finished or errored and
   // notifies the browser accordingly.  If the translation has not terminated,
   // posts a task to check again later.
@@ skipping 24 matching lines @@
   // time from showing infobar to requesting translation.
   base::TimeTicks language_determined_time_;
 
   // Method factory used to make calls to TranslatePageImpl.
   base::WeakPtrFactory<TranslateHelper> weak_method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateHelper);
 };
 
 #endif  // CHROME_RENDERER_TRANSLATE_TRANSLATE_HELPER_H_