Add scoped_ptr-safe base::Value to Dictionary/List conversion functions.

extensions/browser/api/sockets_tcp_server/sockets_tcp_server_apitest.cc

 // Copyright 2013 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/memory/ref_counted.h"
 #include "base/strings/stringprintf.h"
 #include "extensions/browser/api/dns/host_resolver_wrapper.h"
 #include "extensions/browser/api/dns/mock_host_resolver_creator.h"
 #include "extensions/browser/api/sockets_tcp_server/sockets_tcp_server_api.h"
 #include "extensions/browser/api_test_utils.h"
@@ skipping 44 matching lines @@
       new api::SocketsTcpServerCreateFunction());
   scoped_refptr<Extension> empty_extension(test_util::CreateEmptyExtension());
 
   socket_create_function->set_extension(empty_extension.get());
   socket_create_function->set_has_callback(true);
 
   scoped_ptr<base::Value> result(
       api_test_utils::RunFunctionAndReturnSingleResult(
           socket_create_function.get(), "[]", browser_context()));
   ASSERT_EQ(base::Value::TYPE_DICTIONARY, result->GetType());
-  base::DictionaryValue* value =
-      static_cast<base::DictionaryValue*>(result.get());
+  scoped_ptr<base::DictionaryValue> value =
+      base::DictionaryValue::From(result.Pass());
   int socketId = -1;
   EXPECT_TRUE(value->GetInteger("socketId", &socketId));
   ASSERT_TRUE(socketId > 0);
 }
 
 IN_PROC_BROWSER_TEST_F(SocketsTcpServerApiTest, SocketTCPServerExtension) {
   ResultCatcher catcher;
   catcher.RestrictToBrowserContext(browser_context());
   ExtensionTestMessageListener listener("info_please", true);
   ASSERT_TRUE(LoadApp("sockets_tcp_server/api"));
@@ skipping 11 matching lines @@
   ASSERT_TRUE(extension);
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 
   UnloadApp(extension);
 
   ASSERT_TRUE(LoadApp(path)) << message_;
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
 }  // namespace extensions