commit 1cbd970c3d4d0215b24d6426fdf2a4ff4e7f842a
author Selina Liu <hsuying@google.com> Tue Sep 01 16:42:22 2015 +0800
committer chrome-bot <chrome-bot@chromium.org> Mon Sep 21 17:45:15 2015 -0700
tree 957ac34df40ac493e04b37558bab84828d4ab436
parent a320675d6aadeb74b17f708b31af2873f63a001e

audio_widget_link: Add USBWidgetLink and its subclasses

Since there are two directions for USBWidgetLinks, its subclasses
USBToCrosWidgetLink and USBToChameleonWidgetLink are implemented too.

BUG=chromium:514541
TEST=not used yet.

Change-Id: I0bf8d5b2c2dfa1e0b977b206eeb57bf6bfd4e6e1
Reviewed-on: https://chromium-review.googlesource.com/296630
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>