Make a Via for DM which transforms a set of draws to be more like what
we'd see through the Android Framework's HWUI API. Only built inside
Android's framework because we depend on HWUI classes for half of
those transformations.
Tested with --config androidsdk-8888 and --config androidsdk-hwui.
R=djsollen@google.com,mtklein@google.com,reed@google.com
BUG=skia:
Review URL: https://codereview.chromium.org/974913002
