| // 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_ |