Fix translate namespace

components/translate/core/browser/translate_event_details.cc

 // 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.
 
 #include "components/translate/core/browser/translate_event_details.h"
 
+namespace translate {
+
 TranslateEventDetails::TranslateEventDetails(const std::string& in_filename,
                                              int in_line,
                                              const std::string& in_message)
     : filename(in_filename),
       line(in_line),
       message(in_message) {
   time = base::Time::Now();
 }
+
+}  // namespace translate