Calculating drawing area for a line with shadows

Change-Id: Ifb2de5573f4362332cf174012e7ef9bf8248cd59
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/265524
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Julia Lavrova <jlavrova@google.com>
2 files changed