Remove unused constructor parameter from net::WebSocket.

net/server/web_socket.h

Index: net/server/web_socket.h
diff --git a/net/server/web_socket.h b/net/server/web_socket.h
index 935798a5698f5c07a6e636748875cb105a6e2b65..5a13fdc54bb6d0c54d6a0387cdcaadfeb5f69d2a 100644
--- a/net/server/web_socket.h
+++ b/net/server/web_socket.h
@@ -29,8 +29,7 @@ class WebSocket final {
 
   static WebSocket* CreateWebSocket(HttpServer* server,
                                     HttpConnection* connection,
-                                    const HttpServerRequestInfo& request,
-                                    size_t* pos);
+                                    const HttpServerRequestInfo& request);
 
   void Accept(const HttpServerRequestInfo& request);
   ParseResult Read(std::string* message);
@@ -40,8 +39,7 @@ class WebSocket final {
  private:
   WebSocket(HttpServer* server,
             HttpConnection* connection,
-            const HttpServerRequestInfo& request,
-            size_t* pos);
+            const HttpServerRequestInfo& request);
 
   HttpServer* const server_;
   HttpConnection* const connection_;