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Using arrow functions is recommended over binding since arrow functions
permit explicitly specifying which parameters to pass to the callbacks.

Bug: 1059779
Change-Id: I25279d8e39f6635a41719e794620c76ee956545f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2457406Reviewed-by: Jimmy Gong <jimmyxgong@chromium.org>
Commit-Queue: Jesse Schettler <jschettler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814963}