Made return types of various Value::DeepCopy() implementations more specific

chrome/browser/importer/importer_bridge.cc

 // Copyright (c) 2010 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/browser/importer/importer_bridge.h"
 
 #include "app/l10n_util.h"
 #include "base/scoped_ptr.h"
 #include "base/string_number_conversions.h"
 #include "base/string16.h"
@@ skipping 110 matching lines @@
 }
 
 InProcessImporterBridge::~InProcessImporterBridge() {}
 
 ExternalProcessImporterBridge::ExternalProcessImporterBridge(
     ProfileImportThread* profile_import_thread,
     const DictionaryValue& localized_strings)
     : profile_import_thread_(profile_import_thread) {
   // Bridge needs to make its own copy because OS 10.6 autoreleases the
   // localized_strings value that is passed in (see http://crbug.com/46003 ).
-  localized_strings_.reset(
-      static_cast<DictionaryValue*>(localized_strings.DeepCopy()));
+  localized_strings_.reset(localized_strings.DeepCopy());
 }
 
 void ExternalProcessImporterBridge::AddBookmarkEntries(
     const std::vector<ProfileWriter::BookmarkEntry>& bookmarks,
     const std::wstring& first_folder_name, int options) {
   profile_import_thread_->NotifyBookmarksImportReady(bookmarks,
       first_folder_name, options);
 }
 
 void ExternalProcessImporterBridge::AddHomePage(const GURL &home_page) {
@@ skipping 52 matching lines @@
 
 // TODO(viettrungluu): convert to string16.
 std::wstring ExternalProcessImporterBridge::GetLocalizedString(
     int message_id) {
   string16 message;
   localized_strings_->GetString(base::IntToString(message_id), &message);
   return UTF16ToWideHack(message);
 }
 
 ExternalProcessImporterBridge::~ExternalProcessImporterBridge() {}