SkText: refactoring in process

Change-Id: Iac594eeba2e15549a6b2cea2489cf123f7440c79
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/438700
Reviewed-by: Julia Lavrova <jlavrova@google.com>
Commit-Queue: Julia Lavrova <jlavrova@google.com>
7 files changed