Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/cocoa/website_settings/website_settings_bubble_controller.mm

 // Copyright 2014 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.
 
 #import "chrome/browser/ui/cocoa/website_settings/website_settings_bubble_controller.h"
 
 #import <AppKit/AppKit.h>
 
 #include <cmath>
 
@@ skipping 375 matching lines @@
 }
 
 // Handler for the site settings button below the list of permissions.
 - (void)showSiteSettingsData:(id)sender {
   DCHECK(webContents_);
   DCHECK(presenter_);
   presenter_->RecordWebsiteSettingsAction(
       WebsiteSettings::WEBSITE_SETTINGS_SITE_SETTINGS_OPENED);
   webContents_->OpenURL(content::OpenURLParams(
       GURL(chrome::kChromeUIContentSettingsURL), content::Referrer(),
-      NEW_FOREGROUND_TAB, ui::PAGE_TRANSITION_LINK, false));
+      WindowOpenDisposition::NEW_FOREGROUND_TAB, ui::PAGE_TRANSITION_LINK,
+      false));
 }
 
 // Handler for the site settings button below the list of permissions.
 // TODO(lgarron): Move some of this to the presenter for separation of concerns
 // and platform unification. (https://crbug.com/571533)
 - (void)showSecurityDetails:(id)sender {
   DCHECK(webContents_);
   DCHECK(presenter_);
   presenter_->RecordWebsiteSettingsAction(
       WebsiteSettings::WEBSITE_SETTINGS_SECURITY_DETAILS_OPENED);
@@ skipping 789 matching lines @@
 void WebsiteSettingsUIBridge::SetPermissionInfo(
     const PermissionInfoList& permission_info_list,
     const ChosenObjectInfoList& chosen_object_info_list) {
   [bubble_controller_ setPermissionInfo:permission_info_list
                        andChosenObjects:chosen_object_info_list];
 }
 
 void WebsiteSettingsUIBridge::SetSelectedTab(TabId tab_id) {
   // TODO(lgarron): Remove this from the interface. (crbug.com/571533)
 }