Remove VoEHardware interface usage.

webrtc/media/engine/adm_helpers.h

Index: webrtc/media/engine/adm_helpers.h
diff --git a/webrtc/media/engine/adm_helpers.h b/webrtc/media/engine/adm_helpers.h
new file mode 100644
index 0000000000000000000000000000000000000000..1a3eb45960a2a2683add563441b90b387a73db26
--- /dev/null
+++ b/webrtc/media/engine/adm_helpers.h
@@ -0,0 +1,28 @@
+/*
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_MEDIA_ENGINE_ADM_HELPERS_H_
+#define WEBRTC_MEDIA_ENGINE_ADM_HELPERS_H_
+
+#include "webrtc/common_types.h"
+
+namespace webrtc {
+
+class AudioDeviceModule;
+
+namespace adm_helpers {
+
+void SetRecordingDevice(AudioDeviceModule* adm);
+void SetPlayoutDevice(AudioDeviceModule* adm);
+
+}  // namespace adm_helpers
+}  // namespace webrtc
+
+#endif  // WEBRTC_MEDIA_ENGINE_ADM_HELPERS_H_