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

net/socket/ssl_client_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.
 
 // This file includes code SSLClientSocketNSS::DoVerifyCertComplete() derived
 // from AuthCertificateCallback() in
 // mozilla/security/manager/ssl/src/nsNSSCallbacks.cpp.
 
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
@@ skipping 3066 matching lines @@
   DCHECK(core_.get());
   DCHECK(!callback.is_null());
 
   EnterFunction(buf_len);
   int rv = core_->Write(buf, buf_len, callback);
   LeaveFunction(rv);
 
   return rv;
 }
 
-bool SSLClientSocketNSS::SetReceiveBufferSize(int32 size) {
+int SSLClientSocketNSS::SetReceiveBufferSize(int32 size) {
   return transport_->socket()->SetReceiveBufferSize(size);
 }
 
-bool SSLClientSocketNSS::SetSendBufferSize(int32 size) {
+int SSLClientSocketNSS::SetSendBufferSize(int32 size) {
   return transport_->socket()->SetSendBufferSize(size);
 }
 
 int SSLClientSocketNSS::Init() {
   EnterFunction("");
   // Initialize the NSS SSL library in a threadsafe way.  This also
   // initializes the NSS base library.
   EnsureNSSSSLInit();
   if (!NSS_IsInitialized())
     return ERR_UNEXPECTED;
@@ skipping 510 matching lines @@
 scoped_refptr<X509Certificate>
 SSLClientSocketNSS::GetUnverifiedServerCertificateChain() const {
   return core_->state().server_cert.get();
 }
 
 ServerBoundCertService* SSLClientSocketNSS::GetServerBoundCertService() const {
   return server_bound_cert_service_;
 }
 
 }  // namespace net