Host fingerprint mojo service within the device service.

services/device/fingerprint/fingerprint_impl_default.cc

Index: services/device/fingerprint/fingerprint_impl_default.cc
diff --git a/services/device/fingerprint/fingerprint_impl_default.cc b/services/device/fingerprint/fingerprint_impl_default.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bd1ffb4386a3ba9892325b4ea4d77199e26a60d8
--- /dev/null
+++ b/services/device/fingerprint/fingerprint_impl_default.cc
@@ -0,0 +1,27 @@
+// 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.
+
+#include "services/device/fingerprint/fingerprint.h"
+#include "services/device/public/interfaces/fingerprint.mojom.h"
+
+namespace device {
+
+namespace {
+
+// An empty implementation of Fingerprint.
+// Used on platforms where a real implementation is not available.
+class FingerprintImplDefault : public Fingerprint {
+ public:
+  explicit FingerprintImplDefault() {}
+  ~FingerprintImplDefault() {}
+};
+
+}  // namespace
+
+// static
+void Fingerprint::Create(device::mojom::FingerprintRequest request) {
+  // Do nothing.
+}
+
+}  // namespace device