make SetReceiveBufferSize and SetSendBufferSize return net error codes (instead of bools)

net/socket/ssl_server_socket_nss.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/socket/ssl_server_socket_nss.h"
 
 #if defined(OS_WIN)
 #include <winsock2.h>
 #endif
 
@@ skipping 220 matching lines @@
 
   if (rv == ERR_IO_PENDING) {
     user_write_callback_ = callback;
   } else {
     user_write_buf_ = NULL;
     user_write_buf_len_ = 0;
   }
   return rv;
 }
 
-bool SSLServerSocketNSS::SetReceiveBufferSize(int32 size) {
+int SSLServerSocketNSS::SetReceiveBufferSize(int32 size) {
   return transport_socket_->SetReceiveBufferSize(size);
 }
 
-bool SSLServerSocketNSS::SetSendBufferSize(int32 size) {
+int SSLServerSocketNSS::SetSendBufferSize(int32 size) {
   return transport_socket_->SetSendBufferSize(size);
 }
 
 bool SSLServerSocketNSS::IsConnected() const {
   return completed_handshake_;
 }
 
 void SSLServerSocketNSS::Disconnect() {
   transport_socket_->Disconnect();
 }
@@ skipping 576 matching lines @@
   // initializes the NSS base library.
   EnsureNSSSSLInit();
   if (!NSS_IsInitialized())
     return ERR_UNEXPECTED;
 
   EnableSSLServerSockets();
   return OK;
 }
 
 }  // namespace net