tree 8624b4c1196c17a87c7164e119a2db222f8b0e8b
parent 0432d284772ea263e6fad241cbd0f222b85c06b4
author Yeonhee Lee <yhlee@google.com> 1582256695 +0000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1582256695 +0000

[simple_browser] Tab Rearrangement (3/4)

- Changed the UI and the behavior of the scrollable tab list with scroll buttons  and enabled the tab rearrangement feature on it (fxb/45238)
- Modified existing widget tests for the scrollable tab list to fit the changed widget structure.
- Added new widget tests for the scroll buttons.
- Changed the color theme to meet the design spec.

Change-Id: I3686459fa7b071356ca33f6b794611b061522150