Give two g_lazy_tls global variables unique names

In content/child there were two g_lazy_tls global variables
in two different anonymous namespaces. In jumbo build experiments,
where many files compile together and share anonymous namespace,
those globals collided. This patch gives them more distinct names.

Bug: 746953
Change-Id: Icac936f2092d1c8b1bc5de38d443d71cb8955045
Reviewed-on: https://chromium-review.googlesource.com/1251605
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#595100}
2 files changed