[EasyUnlock] Add a private API for establishing an insecure Bluetooth connection.

chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_bluetooth_util.h

Index: chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_bluetooth_util.h
diff --git a/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_bluetooth_util.h b/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_bluetooth_util.h
index 7679ad4a9c15c3a948f17d71ce6130e5ed7a2aba..10a0c2889a94a2a9c1ad4d880735ce7153edf3b5 100644
--- a/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_bluetooth_util.h
+++ b/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_bluetooth_util.h
@@ -8,6 +8,11 @@
 #include <string>
 
 #include "base/callback_forward.h"
+#include "device/bluetooth/bluetooth_device.h"
+
+namespace device {
+class BluetoothUUID;
+}
 
 namespace extensions {
 namespace api {
@@ -28,6 +33,13 @@ typedef base::Callback<void(const SeekDeviceResult& result)> SeekDeviceCallback;
 void SeekBluetoothDeviceByAddress(const std::string& device_address,
                                   const SeekDeviceCallback& callback);
 
+void ConnectToBluetoothServiceInsecurely(
+    device::BluetoothDevice* device,
+    const device::BluetoothUUID& uuid,
+    const device::BluetoothDevice::ConnectToServiceCallback& callback,
+    const device::BluetoothDevice::ConnectToServiceErrorCallback&
+        error_callback);
+
 }  // namespace easy_unlock
 }  // namespace api
 }  // namespace extensions