[PATCH 0/1] MR831: dwrite/layout: Use same logic for mapping both non-visual and visual runs.

[Nikolay Sivov (＠nsivov)]

Both non-visual and visual runs go through fallback mapping process, and
could end up with hard coded default at the end if fallback was insufficient.

Visual runs are using custom fallback and then the system one, non-visual ones
are using only system fallback.

Signed-off-by: Nikolay Sivov