Stop passing raw pointers to base::Value API in c/b/chromeos and c/b/extensions

chrome/browser/extensions/api/sync_file_system/sync_file_system_api_helpers.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_API_HELPERS_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_API_HELPERS_H_
 
+#include <memory>
+
 #include "chrome/browser/sync_file_system/conflict_resolution_policy.h"
 #include "chrome/browser/sync_file_system/sync_action.h"
 #include "chrome/browser/sync_file_system/sync_direction.h"
 #include "chrome/browser/sync_file_system/sync_file_status.h"
 #include "chrome/browser/sync_file_system/sync_file_type.h"
 #include "chrome/browser/sync_file_system/sync_service_state.h"
 #include "chrome/common/extensions/api/sync_file_system.h"
 
 namespace storage {
 class FileSystemURL;
@@ skipping 27 matching lines @@
 ExtensionEnumToConflictResolutionPolicy(
     api::sync_file_system::ConflictResolutionPolicy);
 
 // Creates a dictionary for FileSystem Entry from given |url|.
 // This will create a dictionary which has 'fileSystemType', 'fileSystemName',
 // 'rootUrl', 'filePath' and 'isDirectory' fields.
 // The returned dictionary is supposed to be interpreted
 // in the renderer's customer binding to create a FileEntry object.
 // This returns NULL if the given |url| is not valid or |file_type| is
 // SYNC_FILE_TYPE_UNKNOWN.
-base::DictionaryValue* CreateDictionaryValueForFileSystemEntry(
+std::unique_ptr<base::DictionaryValue> CreateDictionaryValueForFileSystemEntry(
     const storage::FileSystemURL& url,
     sync_file_system::SyncFileType file_type);
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_API_HELPERS_H_