net: Fix more clang warnings about missing virtual and OVERRIDE annotations.

net/server/web_socket.cc

Index: net/server/web_socket.cc
diff --git a/net/server/web_socket.cc b/net/server/web_socket.cc
index 774c4d65d861099f2043c1f536eec2c98ecc5117..e2829daf429b6fd0853cef97296dbdf445788512 100644
--- a/net/server/web_socket.cc
+++ b/net/server/web_socket.cc
@@ -50,7 +50,7 @@ class WebSocketHixie76 : public net::WebSocket {
     return new WebSocketHixie76(connection, request, pos);
   }
 
-  virtual void Accept(const HttpServerRequestInfo& request) {
+  virtual void Accept(const HttpServerRequestInfo& request) OVERRIDE {
     std::string key1 = request.GetHeaderValue("Sec-WebSocket-Key1");
     std::string key2 = request.GetHeaderValue("Sec-WebSocket-Key2");
 
@@ -80,7 +80,7 @@ class WebSocketHixie76 : public net::WebSocket {
     connection_->Send(reinterpret_cast<char*>(digest.a), 16);
   }
 
-  virtual ParseResult Read(std::string* message) {
+  virtual ParseResult Read(std::string* message) OVERRIDE {
     DCHECK(message);
     const std::string& data = connection_->recv_data();
     if (data[0])
@@ -97,7 +97,7 @@ class WebSocketHixie76 : public net::WebSocket {
     return FRAME_OK;
   }
 
-  virtual void Send(const std::string& message) {
+  virtual void Send(const std::string& message) OVERRIDE {
     char message_start = 0;
     char message_end = -1;
     connection_->Send(&message_start, 1);
@@ -182,7 +182,7 @@ class WebSocketHybi17 : public WebSocket {
     return new WebSocketHybi17(connection, request, pos);
   }
 
-  virtual void Accept(const HttpServerRequestInfo& request) {
+  virtual void Accept(const HttpServerRequestInfo& request) OVERRIDE {
     static const char* const kWebSocketGuid =
         "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
     std::string key = request.GetHeaderValue("Sec-WebSocket-Key");
@@ -200,7 +200,7 @@ class WebSocketHybi17 : public WebSocket {
     connection_->Send(response);
   }
 
-  virtual ParseResult Read(std::string* message) {
+  virtual ParseResult Read(std::string* message) OVERRIDE {
     size_t data_length = connection_->recv_data().length();
     if (data_length < 2)
       return FRAME_INCOMPLETE;
@@ -284,7 +284,7 @@ class WebSocketHybi17 : public WebSocket {
     return closed_ ? FRAME_CLOSE : FRAME_OK;
   }
 
-  virtual void Send(const std::string& message) {
+  virtual void Send(const std::string& message) OVERRIDE {
     if (closed_)
       return;