Standardize usage of virtual/override/final in net/

net/socket/mock_client_socket_pool_manager.h

Index: net/socket/mock_client_socket_pool_manager.h
diff --git a/net/socket/mock_client_socket_pool_manager.h b/net/socket/mock_client_socket_pool_manager.h
index 03930e37d3b2becbb5349361b977199570ae3845..76d7704316a31cfd9ce815143ab58c6ff9ef9ef1 100644
--- a/net/socket/mock_client_socket_pool_manager.h
+++ b/net/socket/mock_client_socket_pool_manager.h
@@ -14,7 +14,7 @@ namespace net {
 class MockClientSocketPoolManager : public ClientSocketPoolManager {
  public:
   MockClientSocketPoolManager();
-  virtual ~MockClientSocketPoolManager();
+  ~MockClientSocketPoolManager() override;
 
   // Sets "override" socket pools that get used instead.
   void SetTransportSocketPool(TransportClientSocketPool* pool);
@@ -27,17 +27,17 @@ class MockClientSocketPoolManager : public ClientSocketPoolManager {
                                     SSLClientSocketPool* pool);
 
   // ClientSocketPoolManager methods:
-  virtual void FlushSocketPoolsWithError(int error) override;
-  virtual void CloseIdleSockets() override;
-  virtual TransportClientSocketPool* GetTransportSocketPool() override;
-  virtual SSLClientSocketPool* GetSSLSocketPool() override;
-  virtual SOCKSClientSocketPool* GetSocketPoolForSOCKSProxy(
+  void FlushSocketPoolsWithError(int error) override;
+  void CloseIdleSockets() override;
+  TransportClientSocketPool* GetTransportSocketPool() override;
+  SSLClientSocketPool* GetSSLSocketPool() override;
+  SOCKSClientSocketPool* GetSocketPoolForSOCKSProxy(
       const HostPortPair& socks_proxy) override;
-  virtual HttpProxyClientSocketPool* GetSocketPoolForHTTPProxy(
+  HttpProxyClientSocketPool* GetSocketPoolForHTTPProxy(
       const HostPortPair& http_proxy) override;
-  virtual SSLClientSocketPool* GetSocketPoolForSSLWithProxy(
+  SSLClientSocketPool* GetSocketPoolForSSLWithProxy(
       const HostPortPair& proxy_server) override;
-  virtual base::Value* SocketPoolInfoToValue() const override;
+  base::Value* SocketPoolInfoToValue() const override;
 
  private:
   typedef internal::OwnedPoolMap<HostPortPair, TransportClientSocketPool*>