The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d337597b5491fe5eeb6308703bcde9a5af8e6c94

commit d337597b5491fe5eeb6308703bcde9a5af8e6c94
Author: Mark Pearson <mpearson@chromium.org>
Date: Tue Sep 19 23:36:05 2017

Omnibox - Add Testing for Trigger Alternate Nav Infobar & Fix Bug

Adds tests for triggering of the alternate nav infobar (a.k.a. the
did-you-mean bar).

In the process, I found and fixed a bug I recently introduced in patch
https://chromium-review.googlesource.com/c/chromium/src/+/664921
This bug was that all redirect that did not qualify as
OnlyChangeIsFromHTTPToHTTPS() were treated as failures, i.e., we didn't
show the infobar in those cases.  We should have.

This change fixes the bug and adds tests.

Yay for testing!

Bug:  764843 
Change-Id: I854a71b51da516ef4ff18bbbfc10847ec8733826
Reviewed-on: https://chromium-review.googlesource.com/671648
Commit-Queue: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#502989}
[modify] https://crrev.com/d337597b5491fe5eeb6308703bcde9a5af8e6c94/chrome/browser/ui/omnibox/chrome_omnibox_navigation_observer.cc
[modify] https://crrev.com/d337597b5491fe5eeb6308703bcde9a5af8e6c94/chrome/browser/ui/omnibox/chrome_omnibox_navigation_observer.h
[modify] https://crrev.com/d337597b5491fe5eeb6308703bcde9a5af8e6c94/chrome/browser/ui/omnibox/chrome_omnibox_navigation_observer_unittest.cc