net: merge two versions of SetTCPNoDelay() function into one

net/tools/flip_server/tcp_socket_util.cc

Index: net/tools/flip_server/tcp_socket_util.cc
diff --git a/net/tools/flip_server/tcp_socket_util.cc b/net/tools/flip_server/tcp_socket_util.cc
index 0366b4d97a875cce68814f52ee148467eb75d75c..00f9b7e59e0ad68467d9c2d683e2ed592a4a57bc 100644
--- a/net/tools/flip_server/tcp_socket_util.cc
+++ b/net/tools/flip_server/tcp_socket_util.cc
@@ -17,6 +17,7 @@
 
 #include "base/files/file_util.h"
 #include "base/logging.h"
+#include "net/socket/tcp_socket.h"
 
 namespace net {
 
@@ -61,12 +62,6 @@ bool CloseSocket(int* fd, int tries) {
 
 }  // namespace
 
-bool SetTCPNoDelay(int fd) {
-  int on = 1;
-  return setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char*>(&on),
-                    sizeof(on)) == 0;
-}
-
 int CreateTCPServerSocket(const std::string& host,
                           const std::string& port,
                           bool is_numeric_host_address,
@@ -175,7 +170,7 @@ int CreateTCPServerSocket(const std::string& host,
   }
 
   if (disable_nagle) {
-    if (!SetTCPNoDelay(sock)) {
+    if (!SetTCPNoDelay(sock, /*no_delay=*/true)) {
       close(sock);
       LOG(FATAL) << "SetTCPNoDelay() failed on fd: " << sock;
       return -1;
@@ -253,7 +248,7 @@ int CreateTCPClientSocket(const std::string& host,
   }
 
   if (disable_nagle) {
-    if (!SetTCPNoDelay(sock)) {
+    if (!SetTCPNoDelay(sock, /*no_delay=*/true)) {
       close(sock);
       LOG(FATAL) << "SetTCPNoDelay() failed on fd: " << sock;
       return -1;