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This change includes:
1) Adding new isolate for webview
2) Updating presentation for luci configs
  a) adding new pixel bots
  b) removing Mac 10.12 Laptop Low End that no longer exists
3) Generating new json for fyi waterfall
4) updating script on bot to ignore reference build for android

Bug: 817872
Change-Id: I8376b50dd0fcd8595977609205e8fbd8cb2985b2
Reviewed-on: https://chromium-review.googlesource.com/1039769
Commit-Queue: Emily Hanley <eyaich@chromium.org>
Reviewed-by: Nodir Turakulov <nodir@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555828}