Add RemoteDeviceLoader to create RemoteDevice from CryptAuth data.

components/proximity_auth/proximity_auth_test_util.cc

+// Copyright 2015 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 "components/proximity_auth/proximity_auth_test_util.h"
+
+namespace proximity_auth {
+
+// Attributes of the default test remote device.
+const char kTestRemoteDeviceUserId[] = "example@gmail.com";
+const char kTestRemoteDeviceName[] = "remote device";
+const char kTestRemoteDevicePublicKey[] = "public key";
+const char kTestRemoteDeviceBluetoothAddress[] = "AA:BB:CC:DD:EE:FF";
+const char kTestRemoteDevicePSK[] = "remote device psk";
+const char kTestRemoteDeviceSignInChallenge[] = "sign-in challenge";
+
+}  // namespace proximity_auth