Add RemoteDeviceLoader to create RemoteDevice from CryptAuth data.

components/proximity_auth/proximity_auth_system_unittest.cc

 // Copyright 2014 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_system.h"
 #include "components/proximity_auth/remote_device.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace proximity_auth {
 
 TEST(ProximityAuthSystemTest, GetRemoteDevices) {
-  RemoteDevice device1("device1", "public_key1", "bt_addr1", "psk1");
-  RemoteDevice device2("device2", "public_key2", "bt_addr2", "psk2");
+  RemoteDevice device1("example@gmail.com", "device1", "public_key1",
+                       RemoteDevice::BLUETOOTH_CLASSIC, "bt_addr1", "psk1", "");
+  RemoteDevice device2("example@gmail.com", "device2", "public_key2",
+                       RemoteDevice::BLUETOOTH_LE, "bt_addr2", "psk2", "");
 
   std::vector<RemoteDevice> device_list;
   device_list.push_back(device1);
   device_list.push_back(device2);
 
   ProximityAuthSystem system(device_list);
 
   const std::vector<RemoteDevice>& returned_list = system.GetRemoteDevices();
   ASSERT_EQ(2u, returned_list.size());
   EXPECT_EQ(device1.name, returned_list[0].name);
   EXPECT_EQ(device1.public_key, returned_list[0].public_key);
   EXPECT_EQ(device2.name, returned_list[1].name);
   EXPECT_EQ(device2.public_key, returned_list[1].public_key);
 }
 
 }  // namespace proximity_auth