bisect-kit: use autoninja to build chrome

autoninja is wrapper of ninja and can auto detect proper -j -l option
values.

BUG=None
TEST=run build_and_deploy_chrome_helper.sh

Change-Id: If5b2066e715ad4b2c9029e6826472b904a7c75d6
Reviewed-on: https://chromium-review.googlesource.com/1150004
Commit-Ready: Kuang-che Wu <kcwu@chromium.org>
Tested-by: Kuang-che Wu <kcwu@chromium.org>
Reviewed-by: Chi-Ngai Wan <cnwan@google.com>
1 file changed