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diff --git a/third_party/libwebrtc/video/render/video_render_frames.h b/third_party/libwebrtc/video/render/video_render_frames.h
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+++ b/third_party/libwebrtc/video/render/video_render_frames.h
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+/*
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VIDEO_RENDER_VIDEO_RENDER_FRAMES_H_
+#define VIDEO_RENDER_VIDEO_RENDER_FRAMES_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <list>
+
+#include "absl/types/optional.h"
+#include "api/video/video_frame.h"
+
+namespace webrtc {
+
+// Class definitions
+class VideoRenderFrames {
+ public:
+  explicit VideoRenderFrames(uint32_t render_delay_ms);
+  VideoRenderFrames(const VideoRenderFrames&) = delete;
+  ~VideoRenderFrames();
+
+  // Add a frame to the render queue
+  int32_t AddFrame(VideoFrame&& new_frame);
+
+  // Get a frame for rendering, or false if it's not time to render.
+  absl::optional<VideoFrame> FrameToRender();
+
+  // Returns the number of ms to next frame to render
+  uint32_t TimeToNextFrameRelease();
+
+  bool HasPendingFrames() const;
+
+ private:
+  // Sorted list with framed to be rendered, oldest first.
+  std::list<VideoFrame> incoming_frames_;
+
+  // Estimated delay from a frame is released until it's rendered.
+  const uint32_t render_delay_ms_;
+
+  int64_t last_render_time_ms_ = 0;
+  size_t frames_dropped_ = 0;
+};
+
+}  // namespace webrtc
+
+#endif  // VIDEO_RENDER_VIDEO_RENDER_FRAMES_H_