Roll WebGL 3d0e045..2e13422

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/3d0e045..2e13422

BUG=

TEST=bots

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2310243003
Cr-Commit-Position: refs/heads/master@{#417329}