Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.cc

Index: chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.cc
diff --git a/chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.cc b/chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.cc
index fa8854124b65e002268a96d7efc798b1044849b7..89bb63f21d504ffa31b34deb9fbc81ffcff06a49 100644
--- a/chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.cc
+++ b/chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.cc
@@ -561,7 +561,8 @@ void LocalDiscoveryUIHandler::ShowCloudPrintSetupDialog(
   // Open the connector enable page in the current tab.
   content::OpenURLParams params(cloud_devices::GetCloudPrintEnableURL(
                                     GetCloudPrintProxyService()->proxy_id()),
-                                content::Referrer(), CURRENT_TAB,
+                                content::Referrer(),
+                                WindowOpenDisposition::CURRENT_TAB,
                                 ui::PAGE_TRANSITION_LINK, false);
   web_ui()->GetWebContents()->OpenURL(params);
 }