GitLab

Adds a test-only UiInputManager that gets swapped with the real one
anytime we're using the InputDelegateForTesting. Currently, the only
difference is that the testing version always reports that the
controller is not in the viewport.

This is so that pixel diff tests are not flaky based on the initial
orientation of the device - without this, the controller tooltips
would remain visible if the device started pointed slightly down
even though we lock the head pose forward.

Bug: 904012
Change-Id: Ia34944bd9d678c43480ef218b2d740928732f5ae
Reviewed-on: https://chromium-review.googlesource.com/c/1334941
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608545}