Convert WindowOpenDisposition to an enum class.

chrome/browser/password_manager/account_chooser_dialog_android.cc

Index: chrome/browser/password_manager/account_chooser_dialog_android.cc
diff --git a/chrome/browser/password_manager/account_chooser_dialog_android.cc b/chrome/browser/password_manager/account_chooser_dialog_android.cc
index 54a1638c25ee3aa6e10855d9bce04943238ed2e1..4c7feeaa509f29a18379c72229912cbe068e7639 100644
--- a/chrome/browser/password_manager/account_chooser_dialog_android.cc
+++ b/chrome/browser/password_manager/account_chooser_dialog_android.cc
@@ -199,8 +199,8 @@ void AccountChooserDialogAndroid::OnLinkClicked(
     const JavaParamRef<jobject>& obj) {
   web_contents_->OpenURL(content::OpenURLParams(
       GURL(password_manager::kPasswordManagerHelpCenterSmartLock),
-      content::Referrer(), NEW_FOREGROUND_TAB, ui::PAGE_TRANSITION_LINK,
-      false /* is_renderer_initiated */));
+      content::Referrer(), WindowOpenDisposition::NEW_FOREGROUND_TAB,
+      ui::PAGE_TRANSITION_LINK, false /* is_renderer_initiated */));
 }
 
 void AccountChooserDialogAndroid::WebContentsDestroyed() {