Fix translate namespace

components/translate/core/browser/translate_client.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_CLIENT_H_
 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_CLIENT_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/translate/core/browser/translate_prefs.h"
 #include "components/translate/core/browser/translate_step.h"
 #include "components/translate/core/common/translate_errors.h"
 
 class GURL;
 class PrefService;
-class TranslateAcceptLanguages;
-class TranslateDriver;
-class TranslateInfoBarDelegate;
 
 namespace infobars {
 class InfoBar;
 }
 
+namespace translate {
+
+class TranslateAcceptLanguages;
+class TranslateDriver;
+class TranslateInfoBarDelegate;
+
 // A client interface that needs to be supplied to TranslateManager by the
 // embedder.
 //
 // Each client instance is associated with a given context within which a
 // TranslateManager is used (e.g. a single tab).
 class TranslateClient {
  public:
   // Gets the TranslateDriver associated with the client.
   virtual TranslateDriver* GetTranslateDriver() = 0;
 
@@ skipping 23 matching lines @@
 
   // Returns true if the URL can be translated.
   virtual bool IsTranslatableURL(const GURL& url) = 0;
 
   // Presents |report_url|, a URL containing information relating to reporting
   // a language detection error, to the user to allow them to report language
   // detection errors as desired.
   virtual void ShowReportLanguageDetectionErrorUI(const GURL& report_url) = 0;
 };
 
+}  // namespace translate
+
 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_CLIENT_H_