Convert WindowOpenDisposition to an enum class.

chrome/browser/infobars/infobar_service.cc

Index: chrome/browser/infobars/infobar_service.cc
diff --git a/chrome/browser/infobars/infobar_service.cc b/chrome/browser/infobars/infobar_service.cc
index 71b925185988c456a7f045fb05039605681a4e39..5d0ef27140d37d4c146bec37b5590e870758ae8b 100644
--- a/chrome/browser/infobars/infobar_service.cc
+++ b/chrome/browser/infobars/infobar_service.cc
@@ -119,8 +119,10 @@ void InfoBarService::OpenURL(const GURL& url,
   // A normal user click on an infobar URL will result in a CURRENT_TAB
   // disposition; turn that into a NEW_FOREGROUND_TAB so that we don't end up
   // smashing the page the user is looking at.
-  web_contents()->OpenURL(content::OpenURLParams(
-      url, content::Referrer(),
-      (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
-      ui::PAGE_TRANSITION_LINK, false));
+  web_contents()->OpenURL(
+      content::OpenURLParams(url, content::Referrer(),
+                             (disposition == WindowOpenDisposition::CURRENT_TAB)
+                                 ? WindowOpenDisposition::NEW_FOREGROUND_TAB
+                                 : disposition,
+                             ui::PAGE_TRANSITION_LINK, false));
 }