Log connectivity changes

Log connectivity changes during app push-installs. Additionally,
resolve style nits in the log proto file raised in cl/186300056.

Bug: b/73277923
Test: unit_tests
Change-Id: Ibcedd0b4998c9e6de33839f71324a8af348b5f9d
Reviewed-on: https://chromium-review.googlesource.com/947968
Commit-Queue: Bartosz Fabianowski <bartfab@chromium.org>
Reviewed-by: Pavol Marko <pmarko@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#540866}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: c5d16cfa911c64fe6b964a8fe261330b5836b657
1 file changed