GitLab

The receive confirmation page uses <nearby-progress> with "progress=0"
to show a device preview while hiding the progressbar. This mostly
works, unless there is an error, in which case the progress bar is
shown in red at 100%. This CL allows explicitly turning off progress
so that is is not shown regardless of the error state.

Use "--iron-icon-fill-color" in <nearby-progress> instead of "color" to
set the device icon color, since the "color" property was getting
overridden.

Finally, grey out the <nearby-preview> on the receive confirmation page
when there's an error to match the behavior on the send confirmation
page.

Screenshot: https://screenshot.googleplex.com/4Nxb6o9tThi3obQ.png

Bug: b/163036847
Change-Id: Ibda918fb3fb5c54f7c9c98f9b31f5edaf083e16e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2622900Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: James Vecore <vecore@google.com>
Commit-Queue: Curt Clemens <cclem@google.com>
Cr-Commit-Position: refs/heads/master@{#843596}