stevenjb@, reillyg@: You are owners of components/device_event_log/, is that the source of chrome://device-log/?

As the device log contains traces of user activity, it should be cleared with history.

I'm working on a patch to add a device_event_log::Clear(begin, end) function and to hook it up in the right places.

It is. It would be a simple matter to add a method to clear it.

Is there a tracking bug for this effort? If we clear this data we should delete the chrome log also (viewable in chrome://system under 'chrome_user_log'), and potentially data from chrome://net-internals.

There is also PA_LOG (components/proximity_auth/logging/logging.h), which I believe has a debug page as well but I forget what it is. +khorimoto@

PA_LOG() logs get routed to chrome://proximity-auth.

Thanks for quickly fixing this! These issues came up when eladalon@ discovered that webrtc logs and many other logs keep some history indefinitely. I will create a meta bug to track this.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ae9ee335863f842e76534bb24867928a63500290

commit ae9ee335863f842e76534bb24867928a63500290
Author: Reilly Grant <reillyg@chromium.org>
Date: Thu Mar 29 18:58:45 2018

Clear chrome://device-log when clearing browsing history

This log contains events which are indirectly related to user activity
and so should be cleared when the user requests that the browser delete
this data.

Bug:  826490 
Change-Id: Ief8bdf0985ade4fe47084991e599aef5322003c4
Reviewed-on: https://chromium-review.googlesource.com/984718
Reviewed-by: Christian Dullweber <dullweber@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Reilly Grant <reillyg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#546912}
[modify] https://crrev.com/ae9ee335863f842e76534bb24867928a63500290/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc
[modify] https://crrev.com/ae9ee335863f842e76534bb24867928a63500290/components/device_event_log/device_event_log.cc
[modify] https://crrev.com/ae9ee335863f842e76534bb24867928a63500290/components/device_event_log/device_event_log.h
[modify] https://crrev.com/ae9ee335863f842e76534bb24867928a63500290/components/device_event_log/device_event_log_impl.cc
[modify] https://crrev.com/ae9ee335863f842e76534bb24867928a63500290/components/device_event_log/device_event_log_impl.h
[modify] https://crrev.com/ae9ee335863f842e76534bb24867928a63500290/components/device_event_log/device_event_log_impl_unittest.cc