[Clean up] Expose ConnectToServiceInsecurely as a BluetoothDevice API on all platforms.

device/bluetooth/bluetooth_device_mac.h

Index: device/bluetooth/bluetooth_device_mac.h
diff --git a/device/bluetooth/bluetooth_device_mac.h b/device/bluetooth/bluetooth_device_mac.h
index eed7816b8b2f1d50685da588f5cc1be6a5e91835..299fe911ec7fa1b5bdb51733d83bdebf85b181a6 100644
--- a/device/bluetooth/bluetooth_device_mac.h
+++ b/device/bluetooth/bluetooth_device_mac.h
@@ -58,6 +58,10 @@ class BluetoothDeviceMac : public BluetoothDevice {
       const BluetoothUUID& uuid,
       const ConnectToServiceCallback& callback,
       const ConnectToServiceErrorCallback& error_callback) override;
+  virtual void ConnectToServiceInsecurely(
+      const BluetoothUUID& uuid,
+      const ConnectToServiceCallback& callback,
+      const ConnectToServiceErrorCallback& error_callback) override;
   virtual void CreateGattConnection(
       const GattConnectionCallback& callback,
       const ConnectErrorCallback& error_callback) override;