added using system; for obsolete usage

shbenzer · web-flow · commit ba4a0880082d · 2024-10-31T15:27:21.000-04:00
diff --git a/dotnet/src/webdriver/IWebElement.cs b/dotnet/src/webdriver/IWebElement.cs
@@ -16,6 +16,7 @@
 // limitations under the License.
 // </copyright>
 
+using System;
 using System.Drawing;
 
 namespace OpenQA.Selenium
