|  | // Copyright 2015 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 TONIC_DART_LIBRARY_PROVIDER_H_ | 
|  | #define TONIC_DART_LIBRARY_PROVIDER_H_ | 
|  |  | 
|  | #include <string> | 
|  |  | 
|  | #include "base/callback.h" | 
|  | #include "dart/runtime/include/dart_api.h" | 
|  | #include "mojo/public/cpp/system/data_pipe.h" | 
|  |  | 
|  | namespace tonic { | 
|  |  | 
|  | typedef base::Callback<void(mojo::ScopedDataPipeConsumerHandle)> | 
|  | DataPipeConsumerCallback; | 
|  |  | 
|  | class DartLibraryProvider { | 
|  | public: | 
|  | virtual void GetLibraryAsStream(const std::string& name, | 
|  | DataPipeConsumerCallback callback) = 0; | 
|  |  | 
|  | virtual Dart_Handle CanonicalizeURL(Dart_Handle library, Dart_Handle url) = 0; | 
|  |  | 
|  | virtual ~DartLibraryProvider(); | 
|  | }; | 
|  |  | 
|  | }  // namespace tonic | 
|  |  | 
|  | #endif  // TONIC_DART_LIBRARY_PROVIDER_H_ |