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

dbus/values_util_unittest.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 "dbus/values_util.h"
 
 #include <cmath>
 #include <vector>
 
 #include "base/json/json_writer.h"
@@ skipping 359 matching lines @@
     sub_writer.OpenDictEntry(&entry_writer);
     entry_writer.AppendDouble(keys[i]);
     entry_writer.AppendInt32(values[i]);
     sub_writer.CloseContainer(&entry_writer);
   }
   writer.CloseContainer(&sub_writer);
 
   // 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.
   MessageReader reader(response.get());
   scoped_ptr<base::Value> value(PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   EXPECT_TRUE(value->Equals(&dictionary_value));
 }
 
 TEST(ValuesUtilTest, AppendBasicTypes) {
@@ skipping 286 matching lines @@
   scoped_ptr<base::Value> value;
   value.reset(PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   EXPECT_TRUE(value->Equals(&test_list));
   value.reset(PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   EXPECT_TRUE(value->Equals(&int_value));
 }
 
 }  // namespace dbus