GitLab

This allows us to 1) have smarter filtering; e.g. filtering for bookmarked properties with 'is bookmarked' (separate CL) and 2) avoid unnecessarily going through the DOM for something.

Bug: 891303
Change-Id: I336096881f0fcd2e90a621ab2e54853c83e01608
Reviewed-on: https://chromium-review.googlesource.com/c/1357311Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: manuk hovanesian <manukh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612734}