Standardize usage of virtual/override/final in content/

content/child/appcache/appcache_frontend_impl.h

 // Copyright 2013 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 CONTENT_CHILD_APPCACHE_APPCACHE_FRONTEND_IMPL_H_
 #define CONTENT_CHILD_APPCACHE_APPCACHE_FRONTEND_IMPL_H_
 
 #include "content/common/appcache_interfaces.h"
 
 namespace content {
 
 class AppCacheFrontendImpl : public AppCacheFrontend {
  public:
-  virtual void OnCacheSelected(int host_id,
-                               const AppCacheInfo& info) override;
-  virtual void OnStatusChanged(const std::vector<int>& host_ids,
-                               AppCacheStatus status) override;
-  virtual void OnEventRaised(const std::vector<int>& host_ids,
-                             AppCacheEventID event_id) override;
-  virtual void OnProgressEventRaised(const std::vector<int>& host_ids,
-                                     const GURL& url,
-                                     int num_total,
-                                     int num_complete) override;
-  virtual void OnErrorEventRaised(const std::vector<int>& host_ids,
-                                  const AppCacheErrorDetails& details)
-      override;
-  virtual void OnLogMessage(int host_id,
-                            AppCacheLogLevel log_level,
-                            const std::string& message) override;
-  virtual void OnContentBlocked(int host_id, const GURL& manifest_url) override;
+  void OnCacheSelected(int host_id, const AppCacheInfo& info) override;
+  void OnStatusChanged(const std::vector<int>& host_ids,
+                       AppCacheStatus status) override;
+  void OnEventRaised(const std::vector<int>& host_ids,
+                     AppCacheEventID event_id) override;
+  void OnProgressEventRaised(const std::vector<int>& host_ids,
+                             const GURL& url,
+                             int num_total,
+                             int num_complete) override;
+  void OnErrorEventRaised(const std::vector<int>& host_ids,
+                          const AppCacheErrorDetails& details) override;
+  void OnLogMessage(int host_id,
+                    AppCacheLogLevel log_level,
+                    const std::string& message) override;
+  void OnContentBlocked(int host_id, const GURL& manifest_url) override;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_APPCACHE_APPCACHE_FRONTEND_IMPL_H_