Make element removal methods in DictionaryValue and ListValue take scoped_ptr's as outparams.

chromeos/network/onc/onc_certificate_importer_impl_unittest.cc

Index: chromeos/network/onc/onc_certificate_importer_impl_unittest.cc
diff --git a/chromeos/network/onc/onc_certificate_importer_impl_unittest.cc b/chromeos/network/onc/onc_certificate_importer_impl_unittest.cc
index 497a6103b0c7a3310c54e52add00b54ac28b3b0d..7a525d1494086cde032b3e77a7397fd01ae23bf2 100644
--- a/chromeos/network/onc/onc_certificate_importer_impl_unittest.cc
+++ b/chromeos/network/onc/onc_certificate_importer_impl_unittest.cc
@@ -80,11 +80,11 @@ class ONCCertificateImporterImplTest : public testing::Test {
   void AddCertificatesFromFile(std::string filename, bool expected_success) {
     scoped_ptr<base::DictionaryValue> onc =
         test_utils::ReadTestDictionary(filename);
-    base::Value* certificates_value = NULL;
+    scoped_ptr<base::Value> certificates_value;
     base::ListValue* certificates = NULL;
     onc->RemoveWithoutPathExpansion(toplevel_config::kCertificates,
                                     &certificates_value);
-    certificates_value->GetAsList(&certificates);
+    certificates_value.release()->GetAsList(&certificates);
     onc_certificates_.reset(certificates);
 
     web_trust_certificates_.clear();