GitLab

Get fuzzable_proto_library working on Windows (and probably Mac) by including
a dummy source in our protobuf_full wrapper.
This causes the library to actually get built.

Bug: 884560, 889889
Change-Id: I4c6a1f8b284448dfdf2845cf3fd9adfd6a4fcb78
Reviewed-on: https://chromium-review.googlesource.com/c/1343243Reviewed-by: Max Moroz <mmoroz@chromium.org>
Commit-Queue: Jonathan Metzman <metzman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609466}