Add a new tool holding Xvfb bits.

Compiled executables for Xvfb prepped on machines vaguely according to
instruction in this directory.

BUG=112734
TEST=These have been run on bots successfully.
Review URL: https://chromiumcodereview.appspot.com/9348009

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/xvfb@121100 0039d316-1c4b-4281-b951-d872f2087c98
17 files changed