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- Encapsulates a data point in a diagnostics card.

Bug: 1125150
Test: browser_tests --gtest_filter=DiagnosticsApp*
Change-Id: I0cb465fdd62ac2fafa5d17436e6486f5f0a2bf5a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427075
Commit-Queue: Michael Checo <michaelcheco@google.com>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#810836}