GitLab

Removed CRWRequestTrackerDelegate and SSLCarrier classes because no one
implements CRWRequestTrackerDelegate protocol after moving to WKWebView.

Bug: 585700, 579697
Change-Id: I1895ed00a6134a9e4d08f7a511b1f451c2f2a841
Reviewed-on: https://chromium-review.googlesource.com/691216Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Reviewed-by: Jérôme Lebel <jlebel@chromium.org>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Eugene But <eugenebut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505432}