Fix compile error in V4L2SliceVDA.

BUG=None
TEST=compile on CrOS

Review URL: https://codereview.chromium.org/885273002

Cr-Commit-Position: refs/heads/master@{#313880}

content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc

@@ -2374,7 +2374,7 @@ void V4L2SliceVideoDecodeAccelerator::OutputSurface(
   output_record.at_client = true;
 
   media::Picture picture(output_record.picture_id, dec_surface->bitstream_id(),
-                         gfx::Rect(visible_size_));
+                         gfx::Rect(visible_size_), false);
   DVLOGF(3) << dec_surface->ToString()
             << ", bitstream_id: " << picture.bitstream_buffer_id()
             << ", picture_id: " << picture.picture_buffer_id();