Convert SSLKeyLogger to the new task scheduler stuff.

Bug: 689520
Cq-Include-Trybots: master.tryserver.chromium.android:android_cronet_tester
Change-Id: Icb9892f9332af05076f86f810d84e03efdd2b2cb
Reviewed-on: https://chromium-review.googlesource.com/587630
Reviewed-by: Matt Menke <mmenke@chromium.org>
Reviewed-by: Gabriel Charette <gab@chromium.org>
Commit-Queue: David Benjamin <davidben@chromium.org>
Cr-Commit-Position: refs/heads/master@{#490142}
14 files changed