Make ValueDeserializer::Deserialize return scoped_ptr

chrome/browser/component_updater/component_installers_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 "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
@@ skipping 56 matching lines @@
   manifest = manifest.Append(kDataPath);
   manifest = manifest.AppendASCII("manifest.json");
 
   if (!base::PathExists(manifest)) {
     LOG(WARNING) << "No test manifest available. Skipping.";
     return;
   }
 
   JSONFileValueDeserializer deserializer(manifest);
   std::string error;
-  scoped_ptr<base::DictionaryValue> root(static_cast<base::DictionaryValue*>(
-      deserializer.Deserialize(NULL, &error)));
+
+  scoped_ptr<base::DictionaryValue> root =
+      base::DictionaryValue::From(deserializer.Deserialize(NULL, &error));
+
   ASSERT_TRUE(root);
   ASSERT_TRUE(root->IsType(base::Value::TYPE_DICTIONARY));
 
   // This checks that the whole manifest is compatible.
   Version version;
   EXPECT_TRUE(chrome::CheckPepperFlashManifest(*root, &version));
   EXPECT_TRUE(version.IsValid());
 }
 
 }  // namespace component_updater