Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.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 <stddef.h>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
@@ skipping 60 matching lines @@
 // Navigates away from NTP before it commits, in process-per-tab mode.
 // Ensures that we don't load the normal page in the NTP process (and thus
 // crash), as in http://crbug.com/69224.
 // If this flakes, use http://crbug.com/87200
 IN_PROC_BROWSER_TEST_F(NewTabUIProcessPerTabTest, NavBeforeNTPCommits) {
   // Bring up a new tab page.
   ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUINewTabURL));
 
   // Navigate to chrome://hang/ to stall the process.
   ui_test_utils::NavigateToURLWithDisposition(
-      browser(), GURL(content::kChromeUIHangURL), CURRENT_TAB, 0);
+      browser(), GURL(content::kChromeUIHangURL),
+      WindowOpenDisposition::CURRENT_TAB, 0);
 
   // Visit a normal URL in another NTP that hasn't committed.
   ui_test_utils::NavigateToURLWithDisposition(
-      browser(), GURL(chrome::kChromeUINewTabURL), NEW_FOREGROUND_TAB, 0);
+      browser(), GURL(chrome::kChromeUINewTabURL),
+      WindowOpenDisposition::NEW_FOREGROUND_TAB, 0);
 
   // We don't use ui_test_utils::NavigateToURLWithDisposition because that waits
   // for current loading to stop.
   content::TestNavigationObserver observer(
       browser()->tab_strip_model()->GetActiveWebContents());
   browser()->OpenURL(OpenURLParams(
-      GURL("data:text/html,hello world"), Referrer(), CURRENT_TAB,
-      ui::PAGE_TRANSITION_TYPED, false));
+      GURL("data:text/html,hello world"), Referrer(),
+      WindowOpenDisposition::CURRENT_TAB, ui::PAGE_TRANSITION_TYPED, false));
   observer.Wait();
 }