Make dependency of audio_device of ApplicationServices explicit.
Tested in https://codereview.webrtc.org/2276903002.

BUG=webrtc:6170
NOTRY=true

Review-Url: https://codereview.webrtc.org/2273713003
Cr-Original-Commit-Position: refs/heads/master@{#13895}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 2ec45b9ffa3382844c95e78f135bf2527252db50
1 file changed