Redo GrTextBlob path flush

Change-Id: I4cd27b5367983d70d5c18383e21ae918b0dd8f45
Reviewed-on: https://skia-review.googlesource.com/156981
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
1 file changed