Fix incorrect sampler locations when using CHROMIUM_bind_uniform_location

Fix incorrect sampler locations when using
CHROMIUM_bind_uniform_location.

The extension is not used at the moment, though.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2023783002

Review-Url: https://codereview.chromium.org/2023783002
1 file changed