[Coverity] Fixed resource leak.

ppapi/shared_impl/private/ppb_x509_certificate_private_shared.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 "ppapi/shared_impl/private/ppb_x509_certificate_private_shared.h"
 
 #include "base/logging.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/var.h"
 #include "ppapi/shared_impl/var_tracker.h"
 
 namespace ppapi {
 
 PPB_X509Certificate_Fields::PPB_X509Certificate_Fields() {}
 
 PPB_X509Certificate_Fields::PPB_X509Certificate_Fields(
     const PPB_X509Certificate_Fields& fields) {
-  values_.Swap(fields.values_.DeepCopy());
+  scoped_ptr<ListValue> new_values(fields.values_.DeepCopy());
+  values_.Swap(new_values.get());
 }
 
 void PPB_X509Certificate_Fields::SetField(
     PP_X509Certificate_Private_Field field,
     base::Value* value) {
   uint32_t index = static_cast<uint32_t>(field);
   bool success = values_.Set(index, value);
   DCHECK(success);
 }
 
@@ skipping 107 matching lines @@
     const std::vector<char>& der,
     PPB_X509Certificate_Fields* result) {
   // A concrete PPB_X509Certificate_Private_Shared should only ever be
   // constructed by passing in PPB_X509Certificate_Fields, in which case it is
   // already initialized.
   CHECK(false);
   return false;
 }
 
 }  // namespace ppapi