Standardize usage of virtual/override/final in components/

components/feedback/feedback_data.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_FEEDBACK_FEEDBACK_DATA_H_
 #define COMPONENTS_FEEDBACK_FEEDBACK_DATA_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 59 matching lines @@
   void set_screenshot_uuid(const std::string& uuid) {
     screenshot_uuid_ = uuid;
   }
   void set_trace_id(int trace_id) { trace_id_ = trace_id; }
   void set_send_report_callback(
       const base::Callback<void(scoped_refptr<FeedbackData>)>& send_report) {
     send_report_ = send_report;
   }
 
  private:
-  virtual ~FeedbackData();
+  ~FeedbackData() override;
 
   // Called once a compression operation is complete.
   void OnCompressComplete();
 
   void OnGetTraceData(int trace_id,
                       scoped_refptr<base::RefCountedString> trace_data);
 
   base::Callback<void(scoped_refptr<FeedbackData>)> send_report_;
 
   content::BrowserContext* context_;
 
   std::string attached_filename_;
   std::string attached_file_uuid_;
   std::string screenshot_uuid_;
 
   int trace_id_;
 
   int pending_op_count_;
   bool report_sent_;
 
   DISALLOW_COPY_AND_ASSIGN(FeedbackData);
 };
 
 }  // namespace feedback
 
 #endif  // COMPONENTS_FEEDBACK_FEEDBACK_DATA_H_