Make prepareSurfaceForExternalIO always flush
This probably isn't a huge change from current behavior but, short-term, could introduce some additional flushes.
The long-term plan is to update the drawing manager to perform partial flushes (i.e., flush only the portion of the DAG required for the target proxy) at which point performance should actually be better than the current situation (in which the entire DAG is flushed if there is any pendingIO on the target proxy).
Change-Id: I3270474344c7f982f97cf5087b2c85691bdc31d2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/205000
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2 files changed
