downstream_loader.h 1.7 KB

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  1. // Copyright 2020 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #ifndef COMPONENTS_SPEECH_DOWNSTREAM_LOADER_H_
  5. #define COMPONENTS_SPEECH_DOWNSTREAM_LOADER_H_
  6. #include <memory>
  7. #include "base/callback_forward.h"
  8. #include "base/memory/raw_ptr.h"
  9. #include "base/strings/string_piece.h"
  10. #include "services/network/public/cpp/resource_request.h"
  11. #include "services/network/public/cpp/simple_url_loader.h"
  12. #include "services/network/public/cpp/simple_url_loader_stream_consumer.h"
  13. namespace speech {
  14. class DownstreamLoaderClient;
  15. // Streams response data from the server to the DownstreamLoaderClient.
  16. class DownstreamLoader : public network::SimpleURLLoaderStreamConsumer {
  17. public:
  18. DownstreamLoader(std::unique_ptr<network::ResourceRequest> resource_request,
  19. net::NetworkTrafficAnnotationTag upstream_traffic_annotation,
  20. network::mojom::URLLoaderFactory* url_loader_factory,
  21. DownstreamLoaderClient* downstream_loader_client);
  22. DownstreamLoader(const DownstreamLoader&) = delete;
  23. DownstreamLoader& operator=(const DownstreamLoader&) = delete;
  24. ~DownstreamLoader() override;
  25. // SimpleURLLoaderStreamConsumer implementation:
  26. void OnDataReceived(base::StringPiece string_piece,
  27. base::OnceClosure resume) override;
  28. void OnComplete(bool success) override;
  29. void OnRetry(base::OnceClosure start_retry) override;
  30. private:
  31. // The DownstreamLoaderClient must outlive the DownstreamLoader.
  32. const raw_ptr<DownstreamLoaderClient> downstream_loader_client_;
  33. std::unique_ptr<network::SimpleURLLoader> simple_url_loader_;
  34. };
  35. } // namespace speech
  36. #endif // COMPONENTS_SPEECH_DOWNSTREAM_LOADER_H_