Fixes use after free during drag and drop.

chrome/browser/ui/views/frame/native_browser_frame_factory_aura.cc

+// Copyright (c) 2013 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/views/frame/native_browser_frame_factory.h"
+
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/views/frame/browser_frame_aura.h"
+#include "chrome/browser/ui/views/frame/browser_view.h"
+
+#if defined(USE_ASH)
+#include "ash/wm/window_util.h"
+#include "chrome/browser/ui/ash/ash_init.h"
+#endif
+
+#if !defined(OS_CHROMEOS)
+#include "chrome/browser/ui/views/frame/desktop_browser_frame_aura.h"
+#endif
+
+NativeBrowserFrame* NativeBrowserFrameFactory::Create(
+    BrowserFrame* browser_frame,
+    BrowserView* browser_view) {
+#if !defined(OS_CHROMEOS)
+  if (
+#if defined(USE_ASH)
+      !chrome::ShouldOpenAshOnStartup() &&
+#endif
+      browser_view->browser()->
+          host_desktop_type() == chrome::HOST_DESKTOP_TYPE_NATIVE)
+    return new DesktopBrowserFrameAura(browser_frame, browser_view);
+#endif
+  return new BrowserFrameAura(browser_frame, browser_view);
+}
+