Fix translate namespace

components/translate/core/common/language_detection_details.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_LANGUAGE_DETECTION_DETAILS_H_
 #define COMPONENTS_TRANSLATE_CORE_COMMON_LANGUAGE_DETECTION_DETAILS_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "url/gurl.h"
 
+namespace translate {
+
 struct LanguageDetectionDetails {
   LanguageDetectionDetails();
   ~LanguageDetectionDetails();
 
   // The time when this was created.
   base::Time time;
 
   // The URL.
   GURL url;
 
   // The language detected by the content (Content-Language).
   std::string content_language;
 
   // The language detected by CLD.
   std::string cld_language;
 
   // Whether the CLD detection is reliable or not.
   bool is_cld_reliable;
 
   // The language written in the lang attribute of the html element.
   std::string html_root_language;
 
   // The adopted language.
   std::string adopted_language;
 
   // The contents which is used for detection.
   base::string16 contents;
 };
 
+}  // namespace translate
+
 #endif  // COMPONENTS_TRANSLATE_CORE_COMMON_LANGUAGE_DETECTION_DETAILS_H_