GitLab

This class is in charge of uploading a single WebRTC event log
to the Crash server.

Upcoming related work:
* Update chrome://webrtc-logs
* Fix the known issue where the log is read into memory in its
  entirety prior to initiating the upload.
* Compress the log on disk while writing.

Bug: 775415
Change-Id: Ie5713143b3bc532ac07dd830aecf927698577f18
Reviewed-on: https://chromium-review.googlesource.com/958511Reviewed-by: Mike West <mkwst@chromium.org>
Reviewed-by: Tommi <tommi@chromium.org>
Commit-Queue: Elad Alon <eladalon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543387}