Add unit test to test basic importing and drawing of AHardwareBuffers.

Bug: skia:
Change-Id: If601693109148a7d5c6e6855443a3401c36e5f01
Reviewed-on: https://skia-review.googlesource.com/153545
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
6 files changed