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Add feature to run perf try jobs across all platforms on tryserver.chromium.perf.

This provides a list of new browser to run perf try jobs on tryserver.chromium.perf:
try-all: For tryjobs on all bisect bots (android, mac, win, winx64, linux).
trybot-all-android: tryjobs on all android bisect bots.
trybot-all-win: tryjobs on all windows bisect bots (win, win x64).
trybot-all-mac: tryjobs on all mac bisect bots.
trybot-all-linux: tryjobs on all linux bisect bots.

BUG=467124

Review URL: https://codereview.chromium.org/1020103006

Cr-Commit-Position: refs/heads/master@{#322064}