Jump to current time button.

Updated screencast: https://screencast.googleplex.com/cast/NTQ2MTkwMTg3NzE4MjQ2NHw3MTYxZjJiZS1mMg

Fixes: 274593400
Test: npm run test:unit:ci
Change-Id: I399819c6753aac2c1c7b6fa3d879f719557411a7
5 files changed