commit 7a72c8ad8abee37108b7c2718a1515d6e0dd7886
author Jens Widell <jl@opera.com> Mon Dec 18 21:05:46 2017
committer Commit Bot <commit-bot@chromium.org> Mon Dec 18 21:05:46 2017
tree c53cb2f9bc3efb91731e0e5ba4352bf17266720a
parent a06d12feef1d6e0075f288703be623908dc391ad

Drop `using namespace X` directives

They are not allowed by the Google C++ coding style.

Also, in jumbo/unity builds where the source files are included into a
larger translation unit, clang treats the them as header files, and warns
about such directives in the global namespace (-Wheader-hygiene).

Change-Id: I3079677651430f1fbeff2a79101aa7314a484488
Reviewed-on: https://chromium-review.googlesource.com/829135
Reviewed-by: Ken Rockot <rockot@chromium.org>
Commit-Queue: Jens Widell <jl@opera.com>
Cr-Commit-Position: refs/heads/master@{#524791}