Add files from google3 to Git repo.

tools/sync_google3.sh

+#!/bin/bash
+# Copyright 2014 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Syncs //depot/google3/third_party/skia/HEAD to the last known good revision of
+# Skia. If this script is not run from a Piper client, creates a new CitC
+# client. Also updates README.google.
+#
+# Usage:
+#      ./tools/sync_google3.sh
+
+source gbash.sh || exit
+
+set -x -e
+
+MY_DIR="$(gbash::get_absolute_caller_dir)"
+LKGR="$(${MY_DIR}/get_skia_lkgr.sh)"
+
+gbash::get_google3_dir && GOOGLE3="$(gbash::get_google3_dir)"
+if [ -z "${GOOGLE3}" ]; then
+  CLIENT_NAME="sync_skia_$(date '+%F-%H-%M-%S')"
+  ${MY_DIR}/create_skia_google3_client.sh "${CLIENT_NAME}"
+  GOOGLE3="/google/src/cloud/${USER}/${CLIENT_NAME}/google3"
+fi
+cd "${GOOGLE3}/third_party/skia/HEAD"
+${MY_DIR}/git_clone_to_google3.sh --skia-rev "${LKGR}"
+
+# Update README.google.
+sed --in-place "s/^Version: .*/Version: ${LKGR}/" README.google
+sed --in-place "s/URL: http:\/\/skia.googlesource.com\/skia\/+archive\/.*\.tar\.gz/URL: http:\/\/skia.googlesource.com\/skia\/+archive\/${LKGR}.tar.gz/" README.google
+CURRENT_DATE=`date '+%d %B %Y'`
+echo "Updated using sync_google3.sh on $CURRENT_DATE by $USER@google.com" >> README.google
+
+# Add README.google to the default change.
+g4 reopen
+# Create a new CL.
+CHANGE="$(g4 change --desc "Update skia HEAD to ${LKGR}.")"
+CL="$(echo "${CHANGE}" | sed "s/Change \([0-9]\+\) created.*/\1/")"
+
+# Run TAP.
+tap_presubmit -c "${CL}" -p skia