Add GN Build file for ui/events/ozone.

device/udev_linux/BUILD.gn

Index: device/udev_linux/BUILD.gn
diff --git a/device/udev_linux/BUILD.gn b/device/udev_linux/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..917a7e593d464803db64a902fa3a824f341eeb45
--- /dev/null
+++ b/device/udev_linux/BUILD.gn
@@ -0,0 +1,22 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/features.gni")
+
+if (use_udev) {
+  source_set("udev_linux") {
+    sources = [
+      "udev.cc",
+      "udev.h",
+    ]
+
+    deps = [
+      "//base",
+    ]
+
+    configs += [
+      "//build/config/linux:udev",
+    ]
+  }
+}