Rename SkDevice::ctm() to localToDevice()

This helps differentiate the SkCanvas' total CTM
(canvas transform matrix), from the device-specific transform matrix
that maps draws from local to device space.

Bug: 9545
Change-Id: I67f40d9b1bc92377bf0520fbc9245f1058e179e6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/249424
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Mike Reed <reed@google.com>
13 files changed