Import code from internal repository to git

CONTRIBUTORS

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+# People who have agreed to one of the CLAs and can contribute patches.
+# The AUTHORS file lists the copyright holders; this file
+# lists people.  For example, Google employees are listed here
+# but not in AUTHORS, because Google holds the copyright.
+#
+# https://developers.google.com/open-source/cla/individual
+# https://developers.google.com/open-source/cla/corporate
+#
+# Names should be added to this file as:
+#     Name <email address>
+
+Seth Goldman <sethamin@google.com>
+Corey Goldfeder <cgoldfeder@google.com>
+Richard Roberto <rgr@google.com>
+Justine Tunney <jart@google.com>
+Nick Felt <nickfelt@google.com>
+Ben McIlwain <mcilwain@google.com>
+Brian Mountford <mountford@google.com>
+Chris Tingue <ctingue@google.com>
+Jared Brothers <brothers@google.com>
+Pablo Mayrgundter <pmy@google.com>
+Daisuke Yabuki <dxy@google.com>
+Tim Boring <tjb@google.com>