GitLab

The JSON ruleset parsing step when unpacking an extension now happens
in the browser process using the safe JSON parser.

Also several changes from base::Bind to base::BindOnce.

Bug: 804379
Change-Id: Ie133b429a0ae101c368568b4ae73b940b07d1744
Reviewed-on: https://chromium-review.googlesource.com/879352
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531754}