Standardize usage of virtual/override/final in content/browser/

content/browser/appcache/appcache_frontend_proxy.h

Index: content/browser/appcache/appcache_frontend_proxy.h
diff --git a/content/browser/appcache/appcache_frontend_proxy.h b/content/browser/appcache/appcache_frontend_proxy.h
index 221572a3b3448b86cb56af4e469dc58f8cca1530..65d03ee8d2e63e24c25d281eafa7ce4464bbf6fe 100644
--- a/content/browser/appcache/appcache_frontend_proxy.h
+++ b/content/browser/appcache/appcache_frontend_proxy.h
@@ -19,22 +19,21 @@ class AppCacheFrontendProxy : public AppCacheFrontend {
   explicit AppCacheFrontendProxy(IPC::Sender* sender);
 
   // AppCacheFrontend methods
-  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;
 
  private:
   IPC::Sender* sender_;