Convert JsonWriter::Write to taking a const ref for the in-param

dbus/values_util_unittest.cc

Index: dbus/values_util_unittest.cc
diff --git a/dbus/values_util_unittest.cc b/dbus/values_util_unittest.cc
index 27ec2d0c9899e27d52c2c8a492d406ac9f939825..6abc56a717a0c85207c76ff2bf1636206d298b56 100644
--- a/dbus/values_util_unittest.cc
+++ b/dbus/values_util_unittest.cc
@@ -377,11 +377,9 @@ TEST(ValuesUtilTest, PopDoubleToIntDictionary) {
   // Create the expected value.
   base::DictionaryValue dictionary_value;
   for (size_t i = 0; i != values.size(); ++i) {
-    scoped_ptr<base::Value> key_value(new base::FundamentalValue(keys[i]));
     std::string key_string;
-    base::JSONWriter::Write(key_value.get(), &key_string);
-    dictionary_value.SetWithoutPathExpansion(
-        key_string, new base::FundamentalValue(values[i]));
+    base::JSONWriter::Write(base::FundamentalValue(keys[i]), &key_string);
+    dictionary_value.SetIntegerWithoutPathExpansion(key_string, values[i]);
   }
 
   // Pop a dictionary.