Translate: remove alpha language support

components/translate/core/browser/translate_download_manager.h

 // Copyright 2014 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 COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_DOWNLOAD_MANAGER_H_
 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_DOWNLOAD_MANAGER_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 56 matching lines @@
   static base::Time GetSupportedLanguagesLastUpdated();
 
   // Returns the language code that can be used with the Translate method for a
   // specified |language|. (ex. GetLanguageCode("en-US") will return "en", and
   // GetLanguageCode("zh-CN") returns "zh-CN")
   static std::string GetLanguageCode(const std::string& language);
 
   // Returns true if |language| is supported by the translation server.
   static bool IsSupportedLanguage(const std::string& language);
 
-  // Returns true if |language| is supported by the translation server as an
-  // alpha language.
-  static bool IsAlphaLanguage(const std::string& language);
-
   // Must be called to shut Translate down. Cancels any pending fetches.
   void Shutdown();
 
   // Clears the translate script, so it will be fetched next time we translate.
   void ClearTranslateScriptForTesting();
 
   // Resets to its initial state as if newly created.
   void ResetForTesting();
 
   // Used by unit-tests to override some defaults:
@@ skipping 12 matching lines @@
   // Translate.
   std::unique_ptr<TranslateScript> script_;
 
   std::string application_locale_;
   scoped_refptr<net::URLRequestContextGetter> request_context_;
 };
 
 }  // namespace translate
 
 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_DOWNLOAD_MANAGER_H_