Navigation: Removing NavigateAndCommitRendererInitiated from unit tests.

This patch removes deprecated method
RenderFrameHostTester::NavigateAndCommitRendererInitiated and its
remaining uses in unit tests.

Bug: 728571
Change-Id: I6bd3c51a11b0892b9e3e0ebc0f9ea263f27a223d
Reviewed-on: https://chromium-review.googlesource.com/c/1369936
Commit-Queue: Arthur Hemery <ahemery@chromium.org>
Reviewed-by: Camille Lamy <clamy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615592}
5 files changed