[androidkit] Split Canvas backing store into Surface
Add a Surface abstraction to manage the canvas backing store (equivalent
to SkSurface).
This allows relieving Canvas of buffer management duties - we can now
focus solely on rendering APIs at this level.
At the moment, only a Bitmap-backed surface is implemented -- but other
native surface types will be added.
Also relocate native code to 'src'.
Change-Id: I46738472536cf24524428dbd36969f2b99d251e3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/395536
Reviewed-by: Jorge Betancourt <jmbetancourt@google.com>
Commit-Queue: Florin Malita <fmalita@google.com>
8 files changed