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This is about the very first integration where Chrome would directly talk
to a ChromeReader frontend and interpret ChromeReader's JSON protocol.

Change-Id: I1e53e64eacf879a05704bbe04b960a24fc1bba36
Reviewed-on: https://chromium-review.googlesource.com/659859
Commit-Queue: Tim Schumann <tschumann@chromium.org>
Reviewed-by: vitaliii <vitaliii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#501243}