Remove implicit conversions from scoped_refptr to T* in net/

net/test/cert_test_util_nss.cc

 // Copyright 2014 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/test/cert_test_util.h"
 
 #include <pk11pub.h>
 #include <secmodt.h>
 
 #include "base/file_util.h"
@@ skipping 53 matching lines @@
     const std::string& cert_filename,
     const std::string& key_filename,
     PK11SlotInfo* slot) {
   if (!ImportSensitiveKeyFromFile(dir, key_filename, slot)) {
     LOG(ERROR) << "Could not import private key from file " << key_filename;
     return NULL;
   }
 
   scoped_refptr<X509Certificate> cert(ImportCertFromFile(dir, cert_filename));
 
-  if (!cert) {
+  if (!cert.get()) {
     LOG(ERROR) << "Failed to parse cert from file " << cert_filename;
     return NULL;
   }
 
   if (!ImportClientCertToSlot(cert, slot))
     return NULL;
 
   // |cert| continues to point to the original X509Certificate before the
   // import to |slot|. However this should not make a difference as NSS handles
   // state globally.
   return cert;
 }
 
 }  // namespace net