Fix use-after-free when browser is closed during a drop-drop on desktop Linux

chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.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 "base/bind.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 2037 matching lines @@
     ui_controls::SendMouseEventsNotifyWhenDone(
         ui_controls::LEFT, ui_controls::UP,
         CreateEventTask(this, &BookmarkBarViewTest22::Done));
 #else
     // There are no widgets to send the mouse release to.
     Done();
 #endif
   }
 };
 
-#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
-// TODO(pkotwicz): Enable on Desktop Linux once crbug.com/438365 is fixed.
-#define MAYBE_CloseSourceBrowserDuringDrag DISABLED_CloseSourceBrowserDuringDrag
-#elif defined(OS_WIN)
+#if defined(OS_WIN)
 // This test times out on Windows. TODO(pkotwicz): Find out why.
 #define MAYBE_CloseSourceBrowserDuringDrag DISABLED_CloseSourceBrowserDuringDrag
 #else
 #define MAYBE_CloseSourceBrowserDuringDrag CloseSourceBrowserDuringDrag
 #endif
 
 VIEW_TEST(BookmarkBarViewTest22, MAYBE_CloseSourceBrowserDuringDrag)