Host fingerprint mojo service within the device service.

services/device/fingerprint/fingerprint.h

Index: services/device/fingerprint/fingerprint.h
diff --git a/services/device/fingerprint/fingerprint.h b/services/device/fingerprint/fingerprint.h
new file mode 100644
index 0000000000000000000000000000000000000000..c5600ec899bf03011473de21c77e92f067c749d1
--- /dev/null
+++ b/services/device/fingerprint/fingerprint.h
@@ -0,0 +1,22 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SERVICES_DEVICE_FINGERPRINT_FINGERPRINT_H_
+#define SERVICES_DEVICE_FINGERPRINT_FINGERPRINT_H_
+
+#include "services/device/fingerprint/fingerprint_export.h"
+#include "services/device/public/interfaces/fingerprint.mojom.h"
+
+namespace device {
+
+class Fingerprint {
+ public:
+  // This function is implemented in platform-specific subclasses.
+  SERVICES_DEVICE_FINGERPRINT_EXPORT static void Create(
+      device::mojom::FingerprintRequest request);
+};
+
+}  // namespace device
+
+#endif  // SERVICES_DEVICE_FINGERPRINT_FINGERPRINT_H_