Implementing GATT connection/disconnect on OS X.

device/bluetooth/test/bluetooth_test_mac.h

Index: device/bluetooth/test/bluetooth_test_mac.h
diff --git a/device/bluetooth/test/bluetooth_test_mac.h b/device/bluetooth/test/bluetooth_test_mac.h
index fd354dab315bd69eaa0a502e3f2209ba4bbd3101..95d06bb897a86f414d1a12ac1ad72c5c9aaa2aa0 100644
--- a/device/bluetooth/test/bluetooth_test_mac.h
+++ b/device/bluetooth/test/bluetooth_test_mac.h
@@ -30,12 +30,22 @@ class BluetoothTestMac : public BluetoothTestBase {
   void InitWithoutDefaultAdapter() override;
   void InitWithFakeAdapter() override;
   BluetoothDevice* DiscoverLowEnergyDevice(int device_ordinal) override;
+  void SimulateGattConnection(BluetoothDevice* device) override;
+  void SimulateGattDisconnection(BluetoothDevice* device) override;
+  void SimulateGattConnectionError(
+      BluetoothDevice* device,
+      BluetoothDevice::ConnectErrorCode errorCode) override;
+
+  // Callback for the bluetooth central manager mock.
+  void OnFakeBluetoothDeviceConnectGattCalled();
+  void OnFakeBluetoothGattDisconnect();
 
  protected:
   // Utility function for finding CBUUIDs with relatively nice SHA256 hashes.
   std::string FindCBUUIDForHashTarget();
 
   BluetoothAdapterMac* adapter_mac_ = NULL;
+  void* mock_central_manager_ = NULL;
 };
 
 // Defines common test fixture name. Use TEST_F(BluetoothTest, YourTestName).