GitLab

Removes a TODO by moving a test-only method in WebContentsImpl
to test package.

Change-Id: Ia143ee015b3a68b0ec946a85d042b30cbce07172
Reviewed-on: https://chromium-review.googlesource.com/1168953
Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582482}