This bug was exposed after a refactoring from the translator.

BUG=None
TEST=angle_unittests,angle_end2end_tests

Change-Id: I13fddcbe84f87826068a557f139f6e35c674571e
Reviewed-on: https://chromium-review.googlesource.com/287832Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>