Add SharedImageRepresentationGLTextureAHardwareBuffer.

Implement SharedImageRepresentationGLTexture interface
for SharedImageBackingAHardwareBuffer.

Bug: 891060
Change-Id: I36429244c3643655124052392f983ee4713f60bb
Reviewed-on: https://chromium-review.googlesource.com/c/1294513
Commit-Queue: vikas soni <vikassoni@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Eric Karl <ericrk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602978}
4 files changed