Make tryserver.infra builders at 100% but still experimental.
Make tryserver.infra builders at 100% but still experimental.

Also, use the proper percentages in 0..100 range instead 0..1.

R=akuegel@chromim.org
BUG=522452,403494

Review URL: https://codereview.chromium.org/1297353006

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra