SkDevice::drawBitmap takes x,y, not matrix

Motivation:  a simpler call should make it easier for SkPDF to learn how
to do drawBitmap with A8 bitmap and a maskfilter.
Change-Id: I1a5d190b40b0e9e08fa8876d265a9835a3e9987d
Reviewed-on: https://skia-review.googlesource.com/20961
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
15 files changed