Send bytes_used of v4l2 captured frame when video capture

media/video/capture/linux/v4l2_capture_delegate_single_plane.h

 // Copyright 2015 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 MEDIA_VIDEO_CAPTURE_LINUX_V4L2_CAPTURE_DELEGATE_SINGLE_PLANE_H_
 #define MEDIA_VIDEO_CAPTURE_LINUX_V4L2_CAPTURE_DELEGATE_SINGLE_PLANE_H_
 
 #include "base/memory/ref_counted.h"
 #include "media/video/capture/linux/v4l2_capture_delegate.h"
 #include "media/video/capture/video_capture_device.h"
@@ skipping 28 matching lines @@
   ~V4L2CaptureDelegateSinglePlane() override {}
 
   // V4L2CaptureDelegate virtual methods implementation.
   scoped_refptr<BufferTracker> CreateBufferTracker() const override;
   bool FillV4L2Format(v4l2_format* format,
                       uint32_t width,
                       uint32_t height,
                       uint32_t pixelformat_fourcc) const override;
   void FinishFillingV4L2Buffer(v4l2_buffer* buffer) const override;
   void SendBuffer(const scoped_refptr<BufferTracker>& buffer_tracker,
-                  const v4l2_format& format) const override;
+                  const v4l2_format& format,
+                  size_t bytes_used) const override;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_LINUX_V4L2_CAPTURE_DELEGATE_MULTI_PLANE_H_