| Index: src/DefaultFileSystem.h | 
| diff --git a/src/DefaultFileSystem.h b/src/DefaultFileSystem.h | 
| index 204be06a5651491211cdfe218bbc5b828c505061..60dcb5aa8cd6ea2f6f05fd3c299cf9f22b1ffbfb 100644 | 
| --- a/src/DefaultFileSystem.h | 
| +++ b/src/DefaultFileSystem.h | 
| @@ -54,7 +54,8 @@ namespace AdblockPlus | 
| public: | 
| explicit DefaultFileSystem(const Scheduler& scheduler, std::unique_ptr<DefaultFileSystemSync> syncImpl); | 
| void Read(const std::string& fileName, | 
| -              const ReadCallback& callback) const override; | 
| +              const ReadCallback& doneCallback, | 
| +              const Callback& errorCallback) const override; | 
| void Write(const std::string& fileName, | 
| const IOBuffer& data, | 
| const Callback& callback) override; | 
|  |