Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/cocoa/translate/translate_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/translate/translate_bubble_controller.h"
 
 #include <utility>
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
@@ skipping 822 matching lines @@
   translate::ReportUiAction(translate::TRY_AGAIN_BUTTON_CLICKED);
 }
 
 - (IBAction)handleAdvancedLinkButtonPressed:(id)sender {
   translate::ReportUiAction(translate::ADVANCED_LINK_CLICKED);
   [self switchView:TranslateBubbleModel::VIEW_STATE_ADVANCED];
 }
 
 - (IBAction)handleLanguageSettingsLinkButtonPressed:(id)sender {
   GURL url = chrome::GetSettingsUrl(chrome::kLanguageOptionsSubPage);
-  webContents_->OpenURL(
-      content::OpenURLParams(url, content::Referrer(), NEW_FOREGROUND_TAB,
-                             ui::PAGE_TRANSITION_LINK, false));
+  webContents_->OpenURL(content::OpenURLParams(
+      url, content::Referrer(), WindowOpenDisposition::NEW_FOREGROUND_TAB,
+      ui::PAGE_TRANSITION_LINK, false));
   translate::ReportUiAction(translate::SETTINGS_LINK_CLICKED);
   [self close];
 }
 
 - (IBAction)handleDenialPopUpButtonNeverTranslateLanguageSelected:(id)sender {
   translate::ReportUiAction(translate::NEVER_TRANSLATE_LANGUAGE_MENU_CLICKED);
   model_->DeclineTranslation();
   model_->SetNeverTranslateLanguage(true);
   [self close];
 }
@@ skipping 23 matching lines @@
 // source or target language on the before translate view.
 - (BOOL)textView:(NSTextView*)aTextView
     clickedOnLink:(id)link
           atIndex:(NSUInteger)charIndex {
   translate::ReportUiAction(translate::ADVANCED_LINK_CLICKED);
   [self switchView:TranslateBubbleModel::VIEW_STATE_ADVANCED];
   return YES;
 }
 
 @end