Bluetooth: macOS: DidModifyServices can happens while scanning

device/bluetooth/bluetooth_remote_gatt_descriptor_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 "base/run_loop.h"
 #include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
 #include "device/bluetooth/bluetooth_remote_gatt_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_ANDROID)
@@ skipping 762 matching lines @@
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   ASSERT_NO_FATAL_FAILURE(FakeDescriptorBoilerplate());
 
   descriptor1_->ReadRemoteDescriptor(GetReadValueCallback(Call::EXPECTED),
                                      GetGattErrorCallback(Call::NOT_EXPECTED));
   EXPECT_EQ(1, gatt_read_descriptor_attempts_);
 
   std::string test_string = "Hello";
-  SimulateGattDescriptorReadNSString(descriptor1_, test_string);
+  SimulateGattDescriptorReadNSStringMac(descriptor1_, test_string);
   base::RunLoop().RunUntilIdle();
 
   std::vector<uint8_t> test_vector(test_string.begin(), test_string.end());
   EXPECT_EQ(test_vector, last_read_value_);
   EXPECT_EQ(test_vector, descriptor1_->GetValue());
 }
 
 // Tests NSNumber for descriptor value for macOS.
 // https://developer.apple.com/reference/corebluetooth/cbdescriptor
 TEST_F(BluetoothRemoteGattDescriptorTest, ReadRemoteDescriptor_NSNumber) {
   if (!PlatformSupportsLowEnergy()) {
     LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
     return;
   }
   ASSERT_NO_FATAL_FAILURE(FakeDescriptorBoilerplate());
 
   descriptor1_->ReadRemoteDescriptor(GetReadValueCallback(Call::EXPECTED),
                                      GetGattErrorCallback(Call::NOT_EXPECTED));
   EXPECT_EQ(1, gatt_read_descriptor_attempts_);
 
   const short test_number = 0x1234;
-  SimulateGattDescriptorReadNSNumber(descriptor1_, test_number);
+  SimulateGattDescriptorReadNSNumberMac(descriptor1_, test_number);
   base::RunLoop().RunUntilIdle();
 
   uint8_t values[] = {0x34, 0x12};
   std::vector<uint8_t> test_vector(values, values + arraysize(values));
   EXPECT_EQ(test_vector, last_read_value_);
   EXPECT_EQ(test_vector, descriptor1_->GetValue());
 }
 #endif  // defined(OS_MACOSX)
 
 }  // namespace device