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

chromeos/components/tether/message_wrapper_unittest.cc

Index: chromeos/components/tether/message_wrapper_unittest.cc
diff --git a/chromeos/components/tether/message_wrapper_unittest.cc b/chromeos/components/tether/message_wrapper_unittest.cc
index 78a7e248a301d126473987240db4e389b722f14f..48075e30816573f4aa10e6d4f37caa775bb03023 100644
--- a/chromeos/components/tether/message_wrapper_unittest.cc
+++ b/chromeos/components/tether/message_wrapper_unittest.cc
@@ -10,6 +10,7 @@
 #include "base/logging.h"
 #include "base/macros.h"
 #include "chromeos/components/tether/proto/tether.pb.h"
+#include "chromeos/components/tether/proto_test_util.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -19,27 +20,13 @@ namespace tether {
 
 namespace {
 
-DeviceStatus CreateFakeDeviceStatus() {
-  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("Google Fi");
-  device_status.set_connection_strength(4);
-  device_status.mutable_wifi_status()->CopyFrom(wifi_status);
-
-  return device_status;
-}
-
 TetherAvailabilityResponse CreateTetherAvailabilityResponse() {
   TetherAvailabilityResponse response;
   response.set_response_code(
       TetherAvailabilityResponse_ResponseCode::
           TetherAvailabilityResponse_ResponseCode_TETHER_AVAILABLE);
-  response.mutable_device_status()->CopyFrom(CreateFakeDeviceStatus());
+  response.mutable_device_status()->CopyFrom(
+      CreateDeviceStatusWithFakeFields());
   return response;
 }
 
@@ -81,7 +68,8 @@ TEST_F(MessageWrapperTest, TestToAndFromRawMessage_ConnectTetheringResponse) {
   response.set_password("password");
   response.set_response_code(ConnectTetheringResponse_ResponseCode::
                                  ConnectTetheringResponse_ResponseCode_SUCCESS);
-  response.mutable_device_status()->CopyFrom(CreateFakeDeviceStatus());
+  response.mutable_device_status()->CopyFrom(
+      CreateDeviceStatusWithFakeFields());
 
   MessageWrapper wrapper(response);
   VerifyProtoConversion(&response, wrapper,
@@ -168,7 +156,7 @@ TEST_F(MessageWrapperTest, TestFromRawMessage_StringLiteral) {
   // Type 2 is TETHER_AVAILABILITY_RESPONSE, and the data supplied is
   // CreateTetherAvailabilityResponse() encoded in base-64.
   std::string raw_message =
-      "{\"type\":2,\"data\":\"CAESHQhLEglHb29nbGUgRmkYBCIMCAESCEdvb2dsZSBB\"}";
+      "{\"type\":2,\"data\":\"CAESHQhLEglHb29nbGUgRmkYBCIMCAESCFdpZmlTc2lk\"}";
 
   std::unique_ptr<MessageWrapper> wrapper =
       MessageWrapper::FromRawMessage(raw_message);