inline drawingType facilitating future refactoring

Inline the control back into this code to facilitate future refactoring
to make size calculation more precise.

Bug: chromium: 1280180

Change-Id: If66174ab1d28571a7b84d4ab4bd7fa09ce86c3af
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/491043
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
2 files changed