Convert some NavigationController unit tests to use NavigationSimulator

This CL converts several NavigationController unit tests to use
NavigationSimulator instead of methods on TestRenderFrameHost. This is
needed to start enforcing having a NavigationRequest at commit time.

Bug: 728571
Change-Id: I7c50d0c3fc6d95e56f16d666e4b7fa359011959d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1515574
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Commit-Queue: Camille Lamy <clamy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#642454}
1 file changed