tree d2b9b01e740534f19c8a0e727137a2700edd7447
parent 548e82e6e29389dbe2a82a6dc1d97fc8ca71df35
author tadvana <tadvana@google.com> 1560565618 -0700
committer tadvana <tadvana@google.com> 1561077981 -0700

Remove CarUsbHandler dialog visibility.

This commit modifies the CarUsbHandler to not display its dialog when
there is only one handler for a USB device. There is no good reason to
consume a large amount of screen space when there are no options for a
device, and it is better to only show the dialog when the user actually
has to make a choice. There is a small trade-off in that now the user
does not have any visual indication on the screen that their USB device
is being processed.

Bug: 132441113

Test: Connect an Android phone with the Android Auto app installed to
a Hawk via USB. Android Auto projected should start projecting via
aareceiver without any intermediate dialog being shown.

Change-Id: I90336919659ee4f337ed1c8659efea9cedada849