Convert WindowOpenDisposition to an enum class.

chrome/browser/extensions/extension_storage_monitor_browsertest.cc

Index: chrome/browser/extensions/extension_storage_monitor_browsertest.cc
diff --git a/chrome/browser/extensions/extension_storage_monitor_browsertest.cc b/chrome/browser/extensions/extension_storage_monitor_browsertest.cc
index bdb10b1486895ff1d97cfc2556c6db3b4d1f6ed6..b9671a8945d6d1e405271ba4c42003ae989915d1 100644
--- a/chrome/browser/extensions/extension_storage_monitor_browsertest.cc
+++ b/chrome/browser/extensions/extension_storage_monitor_browsertest.cc
@@ -160,7 +160,8 @@ class ExtensionStorageMonitorTest : public ExtensionBrowserTest {
         GetNotificationId(extension->id()));
 
     OpenApplication(AppLaunchParams(profile(), extension, LAUNCH_CONTAINER_NONE,
-                                    NEW_WINDOW, extensions::SOURCE_TEST));
+                                    WindowOpenDisposition::NEW_WINDOW,
+                                    extensions::SOURCE_TEST));
     ASSERT_TRUE(launched_listener.WaitUntilSatisfied());
 
     // Instruct the app to write |num_bytes| of data.