feat: support dip <-> screen conversion on Linux (#47125)

* feat: support dip <-> screen conversion on Linux

* chore: fix build

shell/browser/linux/x11_util.cc

@@ -0,0 +1,17 @@
+// Copyright (c) 2025 Microsoft GmbH.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/browser/linux/x11_util.h"
+
+#include "ui/ozone/public/ozone_platform.h"
+
+namespace x11_util {
+
+bool IsX11() {
+  return ui::OzonePlatform::GetInstance()
+      ->GetPlatformProperties()
+      .electron_can_call_x11;
+}
+
+}  // namespace x11_util