Enable VR DFM conditional install for DD-ready devices (round 3)

The CL uses the new 'conditional modules' feature to auto-install the
VR DFM upon updating Chrome on supported devices. This should provide a
much better experience when launching Chrome from the DDH for the first
time on devices where the cost of having the VR DFM unused is minimal.

This requires additional feature declarations in the base module
manifest, even if those features are not required.

Bug: 961796
Change-Id: I332ae7351b62fa7efed36552d6b568875077d5a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1717235
Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Will Cassella <cassew@google.com>
Cr-Commit-Position: refs/heads/master@{#680993}
3 files changed