Make SSLClientSocketImpl::SSLContext a leaky singleton.

net/socket/ssl_client_socket_impl.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_client_socket_impl.h"
 
 #include <errno.h>
 #include <string.h>
 
 #include <algorithm>
@@ skipping 224 matching lines @@
 #endif
 
 const base::Feature kShortRecordHeaderFeature{
     "SSLShortRecordHeader", base::FEATURE_DISABLED_BY_DEFAULT};
 
 }  // namespace
 
 class SSLClientSocketImpl::SSLContext {
  public:
   static SSLContext* GetInstance() {
-    return base::Singleton<SSLContext>::get();
+    return base::Singleton<SSLContext,
+                           base::LeakySingletonTraits<SSLContext>>::get();
   }
   SSL_CTX* ssl_ctx() { return ssl_ctx_.get(); }
   SSLClientSessionCache* session_cache() { return &session_cache_; }
 
   SSLClientSocketImpl* GetClientSocketFromSSL(const SSL* ssl) {
     DCHECK(ssl);
     SSLClientSocketImpl* socket = static_cast<SSLClientSocketImpl*>(
         SSL_get_ex_data(ssl, ssl_socket_data_index_));
     DCHECK(socket);
     return socket;
@@ skipping 1809 matching lines @@
     if (ERR_GET_REASON(info->error_code) == SSL_R_TLSV1_ALERT_ACCESS_DENIED &&
         !certificate_requested_) {
       net_error = ERR_SSL_PROTOCOL_ERROR;
     }
   }
 
   return net_error;
 }
 
 }  // namespace net