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This Cl replaces static images with animations.

Bug: 852038
Change-Id: I8185420aed0ed23c080ac0bc7a2270d3ac4c5b7b
Reviewed-on: https://chromium-review.googlesource.com/1166590
Commit-Queue: Alexander Alekseev <alemate@chromium.org>
Reviewed-by: Wenzhao (Colin) Zang <wzang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581735}