[CrOS Tether] Create proto_test_util.cc/h and move CreateTestDeviceStatus() there.

chromeos/components/tether/host_scanner_operation_unittest.cc

 // Copyright 2016 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 "chromeos/components/tether/host_scanner_operation.h"
 
 #include <algorithm>
 #include <memory>
 #include <vector>
 
 #include "base/logging.h"
 #include "chromeos/components/tether/ble_constants.h"
 #include "chromeos/components/tether/fake_ble_connection_manager.h"
 #include "chromeos/components/tether/message_wrapper.h"
 #include "chromeos/components/tether/mock_host_scan_device_prioritizer.h"
 #include "chromeos/components/tether/mock_tether_host_response_recorder.h"
 #include "chromeos/components/tether/proto/tether.pb.h"
+#include "chromeos/components/tether/proto_test_util.h"
 #include "components/cryptauth/remote_device_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 using testing::StrictMock;
 
 namespace chromeos {
 
 namespace tether {
 
@@ skipping 42 matching lines @@
   std::vector<HostScannerOperation::ScannedDeviceInfo> scanned_devices_so_far;
   bool has_final_scan_result_been_sent;
 };
 
 std::string CreateTetherAvailabilityRequestString() {
   TetherAvailabilityRequest request;
   return MessageWrapper(request).ToRawMessage();
 }
 
 DeviceStatus CreateFakeDeviceStatus(std::string cell_provider_name) {
-  WifiStatus wifi_status;
-  wifi_status.set_status_code(
-      WifiStatus_StatusCode::WifiStatus_StatusCode_CONNECTED);
-  wifi_status.set_ssid("Google A");
-
-  DeviceStatus device_status;
-  device_status.set_battery_percentage(75);
-  device_status.set_cell_provider(cell_provider_name);
-  device_status.set_connection_strength(4);
-  device_status.mutable_wifi_status()->CopyFrom(wifi_status);
-
-  return device_status;
+  return CreateTestDeviceStatus(cell_provider_name, 75 /* battery_percentage */,
+                                4 /* connection_strength */);
 }
 
 std::string CreateTetherAvailabilityResponseString(
     TetherAvailabilityResponse_ResponseCode response_code,
     const std::string& cell_provider_name) {
   TetherAvailabilityResponse response;
   response.set_response_code(response_code);
   response.mutable_device_status()->CopyFrom(
       CreateFakeDeviceStatus(cell_provider_name));
   return MessageWrapper(response).ToRawMessage();
@@ skipping 266 matching lines @@
       "noService", true /* expected_to_be_last_scan_result */);
 
   // The scan should be over, and still no new scan results should have come in.
   EXPECT_TRUE(test_observer_->has_final_scan_result_been_sent);
   EXPECT_EQ(2u, test_observer_->scanned_devices_so_far.size());
 }
 
 }  // namespace tether
 
 }  // namespace chromeos