GitLab

Specifically adding the following to settings_resources_v3.grdp
 - global_scroll_target_behavior.js
 - page_visibility.js
 - route.js
 - settings_routes.js
 - site_favicon.js (also port tests and add type-checking)

Bug: 1026426
Change-Id: I921ede15bc636b1b1ba3457cfd1cb3a3ec06a379
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2036276
Commit-Queue: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738056}