GitLab

Add an empty file with the right name under instrumented_libraries to
convince NSS not to load the system-wide uninstrumented library with
the same name. We can not build this library from source.

BUG=520257
TBR=glider@chromium.org

Review URL: https://codereview.chromium.org/1640873003

Cr-Commit-Position: refs/heads/master@{#371931}