GitLab

In common openBookmarkFolder: function, check if button is offTheSideButton and
event is NSOtherMouseUp, if so, open just the folder menu instead of opening all
bookmarks under it.

BUG=46682
R=asvitkine@chromium.org

TEST=
1) Launch chrome and add more bookmarks to Bookmarks bar so that offTheSideButton
is visible.
2) Middle click on the button and observe.
3) It should just open its folder menu instead of opening all bookmarks under it.

Review URL: https://codereview.chromium.org/583223002

Cr-Commit-Position: refs/heads/master@{#295981}