bluetooth: Post a task when sending GATT events to simulate another thread.

device/bluetooth/bluetooth_adapter_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 "device/bluetooth/bluetooth_adapter.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 841 matching lines @@
     return;
   }
   InitWithFakeAdapter();
   TestBluetoothAdapterObserver observer(adapter_);
   StartLowEnergyDiscoverySession();
   BluetoothDevice* device = SimulateLowEnergyDevice(1);
   device->SetAsExpiredForTesting();
   device->CreateGattConnection(GetGattConnectionCallback(Call::EXPECTED),
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
+  base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1u, adapter_->GetDevices().size());
   RemoveTimedOutDevices();
   EXPECT_EQ(0, observer.device_removed_count());
   EXPECT_EQ(1u, adapter_->GetDevices().size());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
 #if defined(OS_MACOSX)
 // Simulate two devices being connected before calling
 // RetrieveGattConnectedDevicesWithDiscoveryFilter() with no service filter.
@@ skipping 173 matching lines @@
   }
   EXPECT_EQ(BluetoothDevice::UUIDSet({heart_service_uuid}),
             RetrieveConnectedPeripheralServiceUUIDs());
 
   EXPECT_EQ(0, observer.device_added_count());
   EXPECT_EQ(1u, adapter_->GetDevices().size());
 }
 #endif  // defined(OS_MACOSX)
 
 }  // namespace device