Wholesale move sky/engine/tonic to tonic

tonic/dart_library_provider.h

+// 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 SKY_ENGINE_TONIC_DART_LIBRARY_PROVIDER_H_
+#define SKY_ENGINE_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 blink {
+
+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 blink
+
+#endif  // SKY_ENGINE_TONIC_DART_LIBRARY_PROVIDER_H_