Fix translate namespace

components/translate/core/browser/translate_prefs.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_PREFS_H_
 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_PREFS_H_
 
 #include <string>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "url/gurl.h"
 
 class PrefService;
 class Profile;
-class TranslateAcceptLanguages;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
+namespace translate {
+
+class TranslateAcceptLanguages;
+
 // The wrapper of PrefService object for Translate.
 //
 // It is assumed that |prefs_| is alive while this instance is alive.
 class TranslatePrefs {
  public:
   static const char kPrefTranslateLanguageBlacklist[];
   static const char kPrefTranslateSiteBlacklist[];
   static const char kPrefTranslateWhitelists[];
   static const char kPrefTranslateDeniedCount[];
   static const char kPrefTranslateAcceptedCount[];
@@ skipping 118 matching lines @@
 
   // Retrieves the dictionary mapping the number of times translation has been
   // accepted for a language, creating it if necessary.
   base::DictionaryValue* GetTranslationAcceptedCountDictionary() const;
 
   PrefService* prefs_;  // Weak.
 
   DISALLOW_COPY_AND_ASSIGN(TranslatePrefs);
 };
 
+}  // namespace translate
+
 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_PREFS_H_