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+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef PDF_STREAM_DELEGATE_QT_H
+#define PDF_STREAM_DELEGATE_QT_H
+
+#include "components/pdf/browser/pdf_stream_delegate.h"
+
+// based on chrome/browser/pdf/chrome_pdf_stream_delegate.h:
+class PdfStreamDelegateQt : public pdf::PdfStreamDelegate
+{
+public:
+ PdfStreamDelegateQt();
+ PdfStreamDelegateQt(const PdfStreamDelegateQt &) = delete;
+ PdfStreamDelegateQt operator=(const PdfStreamDelegateQt &) = delete;
+ ~PdfStreamDelegateQt() override;
+
+ // pdf::PdfStreamDelegate:
+ absl::optional<GURL> MapToOriginalUrl(content::NavigationHandle &navigation_handle) override;
+ absl::optional<StreamInfo> GetStreamInfo(content::RenderFrameHost *embedder_frame) override;
+};
+
+#endif // PDF_STREAM_DELEGATE_QT_H