Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/tab_modal_confirm_dialog_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 "chrome/browser/ui/tab_modal_confirm_dialog_browsertest.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 102 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(TabModalConfirmDialogTest, CloseSelf) {
   delegate_->Close();
   EXPECT_EQ(0, accepted_count_);
   EXPECT_EQ(0, canceled_count_);
   EXPECT_EQ(1, closed_count_);
 }
 
 IN_PROC_BROWSER_TEST_F(TabModalConfirmDialogTest, Navigate) {
-  content::OpenURLParams params(GURL("about:blank"),
-                                content::Referrer(),
-                                CURRENT_TAB,
-                                ui::PAGE_TRANSITION_LINK,
-                                false);
+  content::OpenURLParams params(GURL("about:blank"), content::Referrer(),
+                                WindowOpenDisposition::CURRENT_TAB,
+                                ui::PAGE_TRANSITION_LINK, false);
   browser()->tab_strip_model()->GetActiveWebContents()->OpenURL(params);
 
   EXPECT_EQ(0, accepted_count_);
   EXPECT_EQ(0, canceled_count_);
   EXPECT_EQ(1, closed_count_);
 }
 
 IN_PROC_BROWSER_TEST_F(TabModalConfirmDialogTest, Quit) {
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&chrome::AttemptExit));
   content::RunMessageLoop();
   EXPECT_EQ(0, accepted_count_);
   EXPECT_EQ(0, canceled_count_);
   EXPECT_EQ(1, closed_count_);
 }