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

chrome/common/extensions/manifest_tests/extension_manifests_storage_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 "chrome/common/extensions/manifest_tests/chrome_manifest_test.h"
 
 #include "extensions/common/manifest_constants.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace keys = extensions::manifest_keys;
 
 TEST_F(ChromeManifestTest, StorageAPIManifestVersionAvailability) {
   base::DictionaryValue base_manifest;
   {
     base_manifest.SetString(keys::kName, "test");
     base_manifest.SetString(keys::kVersion, "0.1");
     base::ListValue* permissions = new base::ListValue();
-    permissions->Append(new base::StringValue("storage"));
+    permissions->AppendString("storage");
     base_manifest.Set(keys::kPermissions, permissions);
   }
 
   std::string kManifestVersionError =
       "'storage' requires manifest version of at least 2.";
 
   // Extension with no manifest version cannot use storage API.
   {
     ManifestData manifest(&base_manifest, "test");
     LoadAndExpectWarning(manifest, kManifestVersionError);
@@ skipping 14 matching lines @@
     base::DictionaryValue manifest_with_version;
     manifest_with_version.SetInteger(keys::kManifestVersion, 2);
     manifest_with_version.MergeDictionary(&base_manifest);
 
     ManifestData manifest(&manifest_with_version, "test");
     scoped_refptr<extensions::Extension> extension =
         LoadAndExpectSuccess(manifest);
     EXPECT_TRUE(extension->install_warnings().empty());
   }
 }