Convert WindowOpenDisposition to an enum class.

chrome/browser/download/chrome_download_manager_delegate.cc

 // Copyright (c) 2012 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/download/chrome_download_manager_delegate.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 477 matching lines @@
   Browser* browser =
       web_contents ? chrome::FindBrowserWithWebContents(web_contents) : NULL;
   std::unique_ptr<chrome::ScopedTabbedBrowserDisplayer> browser_displayer;
   if (!browser ||
       !browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
     browser_displayer.reset(new chrome::ScopedTabbedBrowserDisplayer(profile_));
     browser = browser_displayer->browser();
   }
   content::OpenURLParams params(
       net::FilePathToFileURL(download->GetTargetFilePath()),
-      content::Referrer(),
-      NEW_FOREGROUND_TAB,
-      ui::PAGE_TRANSITION_LINK,
-      false);
+      content::Referrer(), WindowOpenDisposition::NEW_FOREGROUND_TAB,
+      ui::PAGE_TRANSITION_LINK, false);
 
   if (download->GetMimeType() == "application/x-x509-user-cert")
     chrome::ShowSettingsSubPage(browser, "certificates");
   else
     browser->OpenURL(params);
 
   RecordDownloadOpenMethod(DOWNLOAD_OPEN_METHOD_DEFAULT_BROWSER);
 #else
   // ShouldPreferOpeningInBrowser() should never be true on Android.
   NOTREACHED();
@@ skipping 297 matching lines @@
       path.MatchesExtension(FILE_PATH_LITERAL(".xht")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xhtm")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xhtml")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xsl")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xslt"))) {
     return true;
   }
 #endif
   return false;
 }