Send bytes_used of v4l2 captured frame when video capture

media/video/capture/linux/v4l2_capture_delegate.h

Index: media/video/capture/linux/v4l2_capture_delegate.h
diff --git a/media/video/capture/linux/v4l2_capture_delegate.h b/media/video/capture/linux/v4l2_capture_delegate.h
index bd0ccad6cf73c30263474a6ca616784c3ca1e33d..7a296c2231d05116e1ca89d24f1af077cb46680a 100644
--- a/media/video/capture/linux/v4l2_capture_delegate.h
+++ b/media/video/capture/linux/v4l2_capture_delegate.h
@@ -99,9 +99,9 @@ class V4L2CaptureDelegate
   virtual void FinishFillingV4L2Buffer(v4l2_buffer* buffer) const = 0;
 
   // Sends the captured |buffer| to the |client_|, synchronously.
-  virtual void SendBuffer(
-      const scoped_refptr<BufferTracker>& buffer_tracker,
-      const v4l2_format& format) const = 0;
+  virtual void SendBuffer(const scoped_refptr<BufferTracker>& buffer_tracker,
+                          const v4l2_format& format,
+                          size_t bytes_used) const = 0;

[wuchengli, 2015/05/19 04:05:54]

s/bytes_used/bytesused/ to be consistent with v4l2_buffer. 

[kcwu, 2015/05/20 12:14:52]

Acknowledged.

 
   // A few accessors for SendBuffer()'s to access private member variables.
   VideoCaptureFormat capture_format() const { return capture_format_; }