Remove ListValue::Append(new {Fundamental,String}Value(...)) pattern in //extensions

extensions/browser/api/web_request/upload_data_presenter_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 <stddef.h>
 
 #include "base/values.h"
 #include "extensions/browser/api/web_request/upload_data_presenter.h"
 #include "extensions/browser/api/web_request/web_request_api_constants.h"
 #include "net/base/upload_bytes_element_reader.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace keys = extension_web_request_api_constants;
 
 namespace extensions {
 
 // This only tests the handling of dots in keys. Other functionality is covered
 // by ExtensionWebRequestTest.AccessRequestBodyData and
 // WebRequestFormDataParserTest.
 TEST(WebRequestUploadDataPresenterTest, ParsedData) {
   // Input.
   const char block[] = "key.with.dots=value";
   net::UploadBytesElementReader element(block, sizeof(block) - 1);
 
   // Expected output.
   std::unique_ptr<base::ListValue> values(new base::ListValue);
-  values->Append(new base::StringValue("value"));
+  values->AppendString("value");
   base::DictionaryValue expected_form;
   expected_form.SetWithoutPathExpansion("key.with.dots", values.release());
 
   // Real output.
   std::unique_ptr<ParsedDataPresenter> parsed_data_presenter(
       ParsedDataPresenter::CreateForTests());
   ASSERT_TRUE(parsed_data_presenter.get() != NULL);
   parsed_data_presenter->FeedNext(element);
   EXPECT_TRUE(parsed_data_presenter->Succeeded());
   std::unique_ptr<base::Value> result = parsed_data_presenter->Result();
@@ skipping 35 matching lines @@
   raw_presenter.FeedNextFile(kFilename);
   raw_presenter.FeedNextBytes(block2, block2_size);
   EXPECT_TRUE(raw_presenter.Succeeded());
   std::unique_ptr<base::Value> result = raw_presenter.Result();
   ASSERT_TRUE(result.get() != NULL);
 
   EXPECT_TRUE(result->Equals(&expected_list));
 }
 
 }  // namespace extensions