[Cleanup] Added missing virtual dtor to base class.

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 <memory>
 #include <string>
 
@@ skipping 15 matching lines @@
 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:
+  virtual ~TranslateClient() {};
+
   // Gets the TranslateDriver associated with the client.
   virtual TranslateDriver* GetTranslateDriver() = 0;
 
   // Returns the associated PrefService.
   virtual PrefService* GetPrefs() = 0;
 
   // Returns the associated TranslatePrefs.
   virtual std::unique_ptr<TranslatePrefs> GetTranslatePrefs() = 0;
 
   // Returns the associated TranslateAcceptLanguages.
@@ skipping 21 matching lines @@
 
   // 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_