Translate: remove alpha language support

components/translate/core/browser/translate_language_list.h

Index: components/translate/core/browser/translate_language_list.h
diff --git a/components/translate/core/browser/translate_language_list.h b/components/translate/core/browser/translate_language_list.h
index e08d6817b4a527761542a6292ca53e19fe9fea68..1b6dadb378ea4ddde8f0a0a12db34963910edb25 100644
--- a/components/translate/core/browser/translate_language_list.h
+++ b/components/translate/core/browser/translate_language_list.h
@@ -36,7 +36,7 @@ class TranslateLanguageList {
   base::Time last_updated() { return last_updated_; }
 
   // Fills |languages| with the list of languages that the translate server can
-  // translate to and from. |languages| will include alpha languages.
+  // translate to and from.
   void GetSupportedLanguages(std::vector<std::string>* languages);
 
   // Returns the language code that can be used with the Translate method for a
@@ -44,14 +44,9 @@ class TranslateLanguageList {
   // GetLanguageCode("zh-CN") returns "zh-CN")
   std::string GetLanguageCode(const std::string& language);
 
-  // Returns true if |language| is supported by the translation server. It also
-  // returns true against alpha languages.
+  // Returns true if |language| is supported by the translation server.
   bool IsSupportedLanguage(const std::string& language);
 
-  // Returns true if |language| is supported by the translation server as a
-  // alpha language.
-  bool IsAlphaLanguage(const std::string& language);
-
   // Fetches the language list from the translate server if resource requests
   // are allowed, and otherwise keeps the request as pending until allowed.
   void RequestLanguageList();
@@ -74,12 +69,9 @@ class TranslateLanguageList {
 
   // static const values shared with our browser tests.
   static const char kTargetLanguagesKey[];
-  static const char kAlphaLanguagesKey[];
 
  private:
   FRIEND_TEST_ALL_PREFIXES(TranslateLanguageListTest, SetSupportedLanguages);
-  FRIEND_TEST_ALL_PREFIXES(TranslateLanguageListTest,
-                           SetSupportedLanguagesWithAlphaKey);
 
   // Callback function called when TranslateURLFetcher::Request() is finished.
   void OnLanguageListFetchComplete(int id,
@@ -106,14 +98,11 @@ class TranslateLanguageList {
   // True if the list has to be fetched when resource requests are allowed.
   bool request_pending_;
 
-  // All the languages supported by the translation server.
-  std::set<std::string> all_supported_languages_;
-
-  // Alpha languages supported by the translation server.
-  std::set<std::string> alpha_languages_;
+  // The languages supported by the translation server.
+  std::set<std::string> supported_languages_;
 
   // A LanguageListFetcher instance to fetch a server providing supported
-  // language list including alpha languages.
+  // language list.
   std::unique_ptr<TranslateURLFetcher> language_list_fetcher_;
 
   // The last-updated time when the language list is sent.