ozone: demo: Add support for passing fuchsia view owner request

Running on scenic requires passing a
fidl::InterfaceRequest<fuchsia::ui::viewsv1token::ViewOwner> to
CreatePlatformWindow().

Bug: 861853
Test: ozone_demo --ozone-platform=scenic --enable-vulkan (with full series)

Change-Id: I948a4408d64dcb8fef1ec28a55437a48e6ec4a54
Reviewed-on: https://chromium-review.googlesource.com/1188973
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#586310}
3 files changed