net: allow SSL secrets to be exported sooner.

net/socket/ssl_client_socket_nss.cc

 // Copyright (c) 2011 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 511 matching lines @@
   cert_request_info->client_certs = client_certs_;
   LeaveFunction(cert_request_info->client_certs.size());
 }
 
 int SSLClientSocketNSS::ExportKeyingMaterial(const base::StringPiece& label,
                                              const base::StringPiece& context,
                                              unsigned char *out,
                                              unsigned int outlen) {
   if (!IsConnected())
     return ERR_SOCKET_NOT_CONNECTED;
-  std::string label_string(label.data(), label.length());
   SECStatus result = SSL_ExportKeyingMaterial(
-      nss_fd_, label_string.c_str(),
+      nss_fd_, label.data(), label.size(),
       reinterpret_cast<const unsigned char*>(context.data()),
       context.length(), out, outlen);
   if (result != SECSuccess) {
     LogFailedNSSFunction(net_log_, "SSL_ExportKeyingMaterial", "");
     return MapNSSError(PORT_GetError());
   }
   return OK;
 }
 
 SSLClientSocket::NextProtoStatus
@@ skipping 1763 matching lines @@
   valid_thread_id_ = base::PlatformThread::CurrentId();
 }
 
 bool SSLClientSocketNSS::CalledOnValidThread() const {
   EnsureThreadIdAssigned();
   base::AutoLock auto_lock(lock_);
   return valid_thread_id_ == base::PlatformThread::CurrentId();
 }
 
 }  // namespace net