Make X509Certificate::GetDEREncoded a static function taking an OSCertHandle

net/base/x509_certificate_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.
 
 #include "net/base/x509_certificate.h"
 
 #include <cert.h>
 #include <cryptohi.h>
 #include <nss.h>
 #include <pk11pub.h>
@@ skipping 884 matching lines @@
   DCHECK(!ev_policy_tags.empty());
 
   for (std::vector<SECOidTag>::const_iterator
        i = ev_policy_tags.begin(); i != ev_policy_tags.end(); ++i) {
     if (CheckCertPolicies(cert_handle_, *i))
       return true;
   }
   return false;
 }
 
-bool X509Certificate::GetDEREncoded(std::string* encoded) {
-  if (!cert_handle_->derCert.len)
+// static
+bool X509Certificate::GetDEREncoded(X509Certificate::OSCertHandle cert_handle,
+                                    std::string* encoded) {
+  if (!cert_handle->derCert.len)
     return false;
-  encoded->clear();
-  encoded->append(reinterpret_cast<char*>(cert_handle_->derCert.data),
-                  cert_handle_->derCert.len);
+  encoded->assign(reinterpret_cast<char*>(cert_handle->derCert.data),
+                  cert_handle->derCert.len);
   return true;
 }
 
 // static
 bool X509Certificate::IsSameOSCert(X509Certificate::OSCertHandle a,
                                    X509Certificate::OSCertHandle b) {
   DCHECK(a && b);
   if (a == b)
     return true;
   return a->derCert.len == b->derCert.len &&
@@ skipping 119 matching lines @@
 
 // static
 bool X509Certificate::WriteOSCertHandleToPickle(OSCertHandle cert_handle,
                                                 Pickle* pickle) {
   return pickle->WriteData(
       reinterpret_cast<const char*>(cert_handle->derCert.data),
       cert_handle->derCert.len);
 }
 
 }  // namespace net