Experiment: enable WebView drag-drop test for Ozone.

chrome/browser/apps/guest_view/web_view_interactive_browsertest.cc

Index: chrome/browser/apps/guest_view/web_view_interactive_browsertest.cc
diff --git a/chrome/browser/apps/guest_view/web_view_interactive_browsertest.cc b/chrome/browser/apps/guest_view/web_view_interactive_browsertest.cc
index d29204f24d3bcdcf8ea64928888c1f4451e58eb0..ca8c8ce0668531d59cb34db7f7e2ccec0b8c9e10 100644
--- a/chrome/browser/apps/guest_view/web_view_interactive_browsertest.cc
+++ b/chrome/browser/apps/guest_view/web_view_interactive_browsertest.cc
@@ -955,7 +955,7 @@ IN_PROC_BROWSER_TEST_F(WebViewInteractiveTest, MAYBE_PopupPositioningMoved) {
 // Drag and drop inside a webview is currently only enabled for linux and mac,
 // but the tests don't work on anything except chromeos for now. This is because
 // of simulating mouse drag code's dependency on platforms.
-#if defined(OS_CHROMEOS) && !defined(USE_OZONE)
+#if defined(OS_CHROMEOS)
 IN_PROC_BROWSER_TEST_F(WebViewInteractiveTest, DragDropWithinWebView) {
   LoadAndLaunchPlatformApp("web_view/dnd_within_webview", "connected");
   ASSERT_TRUE(ui_test_utils::ShowAndFocusNativeWindow(GetPlatformAppWindow()));