ANGLE has implemented extension to support for texture_rectangle. Check
for its existence as well as GL_ARB_texture_rectangle extension.
Intended to follow up on Chrome side to avoid copy into texture 2d for
PaintCanvasVideoRenderer.
Bug: skia:7903
Origin change's info:
> Change-Id: I450aa7fcd08628831251a9e142fd50719723282d
> Reviewed-on: https://skia-review.googlesource.com/130962
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Weiliang Chen <weiliangc@chromium.org>
Change-Id: Ifec92bdc07ec2b2dae38ffe99ec275924cbd37d8
Reviewed-on: https://skia-review.googlesource.com/139272
Commit-Queue: Weiliang Chen <weiliangc@chromium.org>
Reviewed-by: Brian Salomon <bsalomon@google.com>
1e04b3659c