webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

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diff --git a/Source/WebCore/Modules/fetch/FetchResponseSource.h b/Source/WebCore/Modules/fetch/FetchResponseSource.h
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+++ b/Source/WebCore/Modules/fetch/FetchResponseSource.h
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+/*
+ * Copyright (C) 2016 Canon Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted, provided that the following conditions
+ * are required to be met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Canon Inc. nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CANON INC. AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL CANON INC. AND ITS CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#if ENABLE(FETCH_API) && ENABLE(READABLE_STREAM_API)
+
+#include "ReadableStreamSource.h"
+
+namespace JSC {
+class ArrayBuffer;
+};
+
+namespace WebCore {
+
+class FetchResponse;
+
+class FetchResponseSource final : public ReadableStreamSource {
+public:
+    FetchResponseSource(FetchResponse&);
+
+    bool enqueue(RefPtr<JSC::ArrayBuffer>&& chunk) { return controller().enqueue(WTFMove(chunk)); }
+    void close();
+    void error(const String&);
+
+    bool isCancelling() const { return m_isCancelling; }
+    bool isReadableStreamLocked() const;
+
+    void resolvePullPromise() { pullFinished(); }
+
+private:
+    void doStart() final;
+    void doPull() final;
+    void doCancel() final;
+    void setActive() final;
+    void setInactive() final;
+
+    FetchResponse& m_response;
+    bool m_isCancelling { false };
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(FETCH_API) && ENABLE(READABLE_STREAM_API)