[polymer] - Use iron flex class in chart-legend to align X. The original layout.html that contained the old style is gone.
[polymer] - Use iron flex class in chart-legend to align X. The original layout.html that contained the old style is gone.

BUG=catapult:#2514

Review-Url: https://codereview.chromium.org/2183213002

sahiljain/catapult,catapult-project/catapult-csm,sahiljain/catapult,benschmaus/catapult,catapult-project/catapult-csm,benschmaus/catapult,catapult-project/catapult-csm,benschmaus/catapult,catapult-project/catapult-csm,catapult-project/catapult-csm,benschmaus/catapult,sahiljain/catapult,benschmaus/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult-csm,catapult-project/catapult,catapult-project/catapult-csm,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,sahiljain/catapult,benschmaus/catapult,sahiljain/catapult,catapult-project/catapult,benschmaus/catapult,sahiljain/catapult