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Some web-sites may handle the arrow keys themselves for moving focus.
Unfortunately some of them do not call preventDefault.

In this case, the focus moves twice.
(ex. Buttons of https://expedia.com (class="tabs cf col"))

This patch prevents duplicate focus moving by checking that
the current fucused element matches the event target element.

Change-Id: If97fd4d81f3eabf7fc015aa464b6d121f30458fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1859425
Commit-Queue: Jeonghee Ahn <jeonghee27.ahn@lge.com>
Reviewed-by: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#706853}