DevTools: Properly restore focus after tabbing through inplace editors

Pressing tab while editing an attribute would first move the focus, and
then start editing the next attribute. After editing finished, focus
would be restored to the wrong place.

BUG=none

Review-Url: https://codereview.chromium.org/2674453002
Cr-Commit-Position: refs/heads/master@{#447865}
1 file changed