GitLab

This CL reverts r412572 - |TestRunner::will_navigate_| is no longer
needed, because right now PlzNavigate creates a dummy provisional
DocumentLoader at the start of a renderer-initiated navigation - the
presence of a provisional DocumentLoader is taken into account when
computing when to stop the layout TestRunner.

Bug: 765752
Change-Id: Ia50aabbba25937777c6c966ec8e056d4014bd971
Reviewed-on: https://chromium-review.googlesource.com/669602Reviewed-by: Camille Lamy <clamy@chromium.org>
Commit-Queue: Łukasz Anforowicz <lukasza@chromium.org>
Cr-Commit-Position: refs/heads/master@{#502855}