1 files changed, 44 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/modules/peerconnection/rtc_encoded_audio_underlying_sink.h b/chromium/third_party/blink/renderer/modules/peerconnection/rtc_encoded_audio_underlying_sink.h
new file mode 100644
index 00000000000..152606c43f3
--- /dev/null
+++ b/chromium/third_party/blink/renderer/modules/peerconnection/rtc_encoded_audio_underlying_sink.h
@@ -0,0 +1,44 @@
+// Copyright 2020 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 THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_AUDIO_UNDERLYING_SINK_H_
+#define THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_AUDIO_UNDERLYING_SINK_H_
+
+#include "third_party/blink/renderer/core/streams/underlying_sink_base.h"
+#include "third_party/blink/renderer/modules/modules_export.h"
+
+namespace blink {
+
+class ExceptionState;
+class RTCEncodedAudioStreamTransformer;
+
+class MODULES_EXPORT RTCEncodedAudioUnderlyingSink final
+    : public UnderlyingSinkBase {
+ public:
+  using TransformerCallback =
+      base::RepeatingCallback<RTCEncodedAudioStreamTransformer*()>;
+  RTCEncodedAudioUnderlyingSink(ScriptState*, TransformerCallback);
+
+  // UnderlyingSinkBase
+  ScriptPromise start(ScriptState*,
+                      WritableStreamDefaultController*,
+                      ExceptionState&) override;
+  ScriptPromise write(ScriptState*,
+                      ScriptValue chunk,
+                      WritableStreamDefaultController*,
+                      ExceptionState&) override;
+  ScriptPromise close(ScriptState*, ExceptionState&) override;
+  ScriptPromise abort(ScriptState*,
+                      ScriptValue reason,
+                      ExceptionState&) override;
+
+  void Trace(Visitor*) override;
+
+ private:
+  TransformerCallback transformer_callback_;
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_RTC_ENCODED_AUDIO_UNDERLYING_SINK_H_