[Mojo-IMF] Adds the end to end browser test for Mojo IMF.

Bug: 937167
Change-Id: I88f93733abf3b72fb7ccc3a85ff92215c8835459
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1567147
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Shu Chen <shuchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654288}
1 file changed