GitLab

Updates all of the tests in VrBrowserDialogTest to be actual
RenderTests instead of just capturing an image and doing nothing with
it. Also moves the majority of them out into different test classes
that are more appropriate for what they are testing since most aren't
actually for permission dialogs.

Bug: 887505, 864775, 862182
Change-Id: If65738034d49558f48d89ab26dda8aacc15c4774
Reviewed-on: https://chromium-review.googlesource.com/c/1414192
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: Bill Orr <billorr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#630063}