Consider the origin flag when loading the translate language list

components/translate/core/common/translate_util.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_COMMON_TRANSLATE_UTIL_H_
 #define COMPONENTS_TRANSLATE_CORE_COMMON_TRANSLATE_UTIL_H_
 
 #include <string>
 
 class GURL;
 
 namespace translate {
 
 // Isolated world sets following security-origin by default.
 extern const char kSecurityOrigin[];
 
 // Converts language code synonym to use at Translate server.
 void ToTranslateLanguageSynonym(std::string* language);
 
 // Converts language code synonym to use at Chrome internal.
 void ToChromeLanguageSynonym(std::string* language);
 
-// Get Security origin with which Translate runs.
+// Get Security origin with which Translate runs. This is used both for
+// language checks and to obtain the list of available languages.
 GURL GetTranslateSecurityOrigin();
 
 }  // namespace translate
 
 #endif  // COMPONENTS_TRANSLATE_CORE_COMMON_TRANSLATE_UTIL_H_