Test display associations in TouchIntegrationTest

Added test for display linked via a input-port and via a unique id

Bug: 285478143
Test: atest inputflinger_tests

Change-Id: I12fb815eec20b345545899a20dc28110bfd321f0
diff --git a/services/inputflinger/tests/UinputDevice.h b/services/inputflinger/tests/UinputDevice.h
index 51e331d..5b07465 100644
--- a/services/inputflinger/tests/UinputDevice.h
+++ b/services/inputflinger/tests/UinputDevice.h
@@ -197,11 +197,12 @@
     const Point getCenterPoint();
 
 protected:
-    explicit UinputTouchScreen(const Rect& size);
+    explicit UinputTouchScreen(const Rect& size, const std::string& physicalPort = "");
 
 private:
     void configureDevice(int fd, uinput_user_dev* device) override;
     const Rect mSize;
+    const std::string mPhysicalPort;
 };
 
 } // namespace android