Avoid redundant BindingPointer::set in setBufferBinding
Avoid redundant BindingPointer::set in setBufferBinding

BUG=angleproject:2169

Change-Id: I91f099a53b456fc96988839e34733ce09fe38336
Reviewed-on: https://chromium-review.googlesource.com/766473
Commit-Queue: Corentin Wallez <470c533e86f4f848c98c7e11fffc2d043494a401@chromium.org>
Reviewed-by: Geoff Lang <b6fc25fe0362055230985c05cbfa8adb741ccc0f@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle