OpenBSD: make it possible to build libbase.a.

This still needs a little hack. I had to run gyp_chromium this way:
CHROMIUM_GYP_FILE="base/base.gyp" build/gyp_chromium -DOS=openbsd \
    -Duse_gnome_keyring=0 -Duse_system_libevent=1

And then run "gmake base".

BUG=none

Review URL: http://codereview.chromium.org/6840023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81709 0039d316-1c4b-4281-b951-d872f2087c98
6 files changed