Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

net/cert/nss_cert_database.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/cert/nss_cert_database.h"
 
 #include <cert.h>
 #include <certdb.h>
 #include <keyhi.h>
 #include <pk11pub.h>
@@ skipping 17 matching lines @@
 #if !defined(CERTDB_TERMINAL_RECORD)
 #define CERTDB_TERMINAL_RECORD CERTDB_VALID_PEER
 #endif
 
 // PSM = Mozilla's Personal Security Manager.
 namespace psm = mozilla_security_manager;
 
 namespace net {
 
 NSSCertDatabase::ImportCertFailure::ImportCertFailure(
-    X509Certificate* cert, int err)
-    : certificate(cert),
-      net_error(err) {}
+    const scoped_refptr<X509Certificate>& cert,
+    int err)
+    : certificate(cert), net_error(err) {}
 
 NSSCertDatabase::ImportCertFailure::~ImportCertFailure() {}
 
 // static
 NSSCertDatabase* NSSCertDatabase::GetInstance() {
   return Singleton<NSSCertDatabase,
                    LeakySingletonTraits<NSSCertDatabase> >::get();
 }
 
 NSSCertDatabase::NSSCertDatabase()
@@ skipping 285 matching lines @@
   observer_list_->Notify(&Observer::OnCertRemoved, make_scoped_refptr(cert));
 }
 
 void NSSCertDatabase::NotifyObserversOfCertTrustChanged(
     const X509Certificate* cert) {
   observer_list_->Notify(
       &Observer::OnCertTrustChanged, make_scoped_refptr(cert));
 }
 
 }  // namespace net