Update internal skia uses to use flushAndSubmit and submit calls.

Bug: skia:10118
Change-Id: Ieb7c0eece56d3d9df56ecb52e00e76c01f038de8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/289888
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/tools/viewer/Viewer.cpp b/tools/viewer/Viewer.cpp
index 22ae762..2e657d0 100644
--- a/tools/viewer/Viewer.cpp
+++ b/tools/viewer/Viewer.cpp
@@ -1450,7 +1450,7 @@
 
     // Force a flush so we can time that, too
     fStatsLayer.beginTiming(fFlushTimer);
-    slideSurface->flush();
+    slideSurface->flushAndSubmit();
     fStatsLayer.endTiming(fFlushTimer);
 
     // If we rendered offscreen, snap an image and push the results to the window's canvas