commit a37729b7b8d4c1c78b50da291096a516b7ae0b8c
author Tom Wai-Hong Tam <waihong@chromium.org> Wed Nov 05 21:37:11 2014
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Thu Nov 06 06:32:43 2014
tree b73a4ce286addd652acda8629d2e651b0ffea444
parent d33a482b09f9502bd929424a2a3b616824d85f85

Centralize the audio logic to a new class InputFlowWithAudio

Not every InputFlow supports audio, e.g. VGA. So move the audio specific
logic to a new class InputFlowWithAudio. And HdmiInputFlow inherits this
new class.

BUG=chromium:429931
TEST=Verified it did not break the existing tests with HDMI interface.

Change-Id: Ic7a2c4db0664c47a9c7f24607a7deae0ade90257
Reviewed-on: https://chromium-review.googlesource.com/227784
Tested-by: Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Hung-ying Tyan <tyanh@chromium.org>
Commit-Queue: Wai-Hong Tam <waihong@chromium.org>