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Implemented a UI change behind the flag:
UI with flag disabled: https://screenshot.googleplex.com/osdAbRsrOdw
UI with flag enabled: https://screenshot.googleplex.com/k9waaRkjG4x

Test: tested with Chrome on Linux
Bug: 1086786
Change-Id: Id3b35306289715e8761e874a6b0fcdfed12205ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2216139Reviewed-by: Darren Shen <shend@chromium.org>
Reviewed-by: James Cook <jamescook@chromium.org>
Commit-Queue: Jing Wang <jiwan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#773047}