rename virtuals for clipbounds, and deprecate older bool/var-arg pattern

BUG=skia:

Change-Id: I08bcc2d0559e02838772538816b928e0716dd3aa
Reviewed-on: https://skia-review.googlesource.com/7412
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
9 files changed