Use BoringSSL scopers in //net.

net/quic/chromium/crypto/proof_source_chromium.cc

 // Copyright 2013 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/quic/chromium/crypto/proof_source_chromium.h"
 
 #include <openssl/digest.h>
 #include <openssl/evp.h>
 #include <openssl/rsa.h>
 
 #include "base/strings/string_number_conversions.h"
 #include "crypto/openssl_util.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
-#include "net/ssl/scoped_openssl_types.h"
 
 using std::string;
 using std::vector;
 
 namespace net {
 
 ProofSourceChromium::ProofSourceChromium() {}
 
 ProofSourceChromium::~ProofSourceChromium() {}
 
@@ skipping 58 matching lines @@
                                    const string& hostname,
                                    const string& server_config,
                                    QuicVersion quic_version,
                                    base::StringPiece chlo_hash,
                                    scoped_refptr<ProofSource::Chain>* out_chain,
                                    string* out_signature,
                                    string* out_leaf_cert_sct) {
   DCHECK(private_key_.get()) << " this: " << this;
 
   crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  crypto::ScopedEVP_MD_CTX sign_context(EVP_MD_CTX_create());
+  bssl::ScopedEVP_MD_CTX sign_context;
   EVP_PKEY_CTX* pkey_ctx;
 
   if (quic_version > QUIC_VERSION_30) {
     uint32_t len = chlo_hash.length();
     if (!EVP_DigestSignInit(sign_context.get(), &pkey_ctx, EVP_sha256(),
                             nullptr, private_key_->key()) ||
         !EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING) ||
         !EVP_PKEY_CTX_set_rsa_pss_saltlen(pkey_ctx, -1) ||
         !EVP_DigestSignUpdate(
             sign_context.get(),
@@ skipping 56 matching lines @@
   // GetProof, then invoke the callback with the results and destroy it.
   scoped_refptr<ProofSource::Chain> chain;
   string signature;
   string leaf_cert_sct;
   const bool ok = GetProof(server_ip, hostname, server_config, quic_version,
                            chlo_hash, &chain, &signature, &leaf_cert_sct);
   callback->Run(ok, chain, signature, leaf_cert_sct, nullptr /* details */);
 }
 
 }  // namespace net