Convert WindowOpenDisposition to an enum class.

chrome/browser/infobars/infobar_service.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/browser/infobars/infobar_service.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/common/render_messages.h"
 #include "components/content_settings/content/common/content_settings_messages.h"
@@ skipping 101 matching lines @@
   web_contents()->RemoveUserData(UserDataKey());
   // That was the equivalent of "delete this". This object is now destroyed;
   // returning from this function is the only safe thing to do.
 }
 
 void InfoBarService::OpenURL(const GURL& url,
                              WindowOpenDisposition disposition) {
   // 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));
 }