Test adding perf week tests as smoothness benchmark

Perf week tests

Test them out on the perf bisect bots

Try command:
git cl try -m tryserver.chromium.perf -b linux_perf_bisect -b mac_perf_bisect -b win_perf_bisect -b android_gn_perf_bisect -b android_nexus4_perf_bisect -b android_nexus7_perf_bisect -b android_nexus10_perf_bisect

Problems with perf bisect bots logged at: https://crbug.com/394990