This change saves 6.6KB on Android

Bug: angleproject:5490
Bug: chromium:1161513
Change-Id: I14636694ed7bff61accfac934fbbf6f619d2f6b0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2606528
Commit-Queue: Peng Huang <penghuang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>