Convert WindowOpenDisposition to an enum class.

chrome/browser/chromeos/input_method/textinput_browsertest.cc

Index: chrome/browser/chromeos/input_method/textinput_browsertest.cc
diff --git a/chrome/browser/chromeos/input_method/textinput_browsertest.cc b/chrome/browser/chromeos/input_method/textinput_browsertest.cc
index 6ba6f32c56c3c6f151c5ed3fe547661ed2fe94c9..12df4c0c56d70df21f57f59c9de70ce01b1ea89f 100644
--- a/chrome/browser/chromeos/input_method/textinput_browsertest.cc
+++ b/chrome/browser/chromeos/input_method/textinput_browsertest.cc
@@ -294,10 +294,8 @@ IN_PROC_BROWSER_TEST_F(TextInput_TextInputStateChangedTest,
   GURL new_url = ui_test_utils::GetTestUrl(
       base::FilePath(FILE_PATH_LITERAL("textinput")),
       base::FilePath(FILE_PATH_LITERAL("focus_input_on_load.html")));
-  ui_test_utils::NavigateToURLWithDisposition(browser(),
-                                              new_url,
-                                              NEW_FOREGROUND_TAB,
-                                              0);
+  ui_test_utils::NavigateToURLWithDisposition(
+      browser(), new_url, WindowOpenDisposition::NEW_FOREGROUND_TAB, 0);
   content::WebContents* new_tab =
       browser()->tab_strip_model()->GetActiveWebContents();
   EXPECT_NE(base_tab, new_tab);