Force MimeHandlerView to always use BrowserPlugin

content/public/common/browser_plugin_guest_mode.h

-// Copyright 2015 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.
-
-#ifndef CONTENT_PUBLIC_COMMON_BROWSER_PLUGIN_GUEST_MODE_H_
-#define CONTENT_PUBLIC_COMMON_BROWSER_PLUGIN_GUEST_MODE_H_
-
-#include "base/macros.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-class CONTENT_EXPORT BrowserPluginGuestMode {
- public:
-  // Returns true if inner WebContents should be implemented in terms of cross-
-  // process iframes.
-  static bool UseCrossProcessFramesForGuests();
-
- private:
-  BrowserPluginGuestMode();  // Not instantiable
-
-  DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuestMode);
-};
-
-}  // namespace
-
-#endif  // CONTENT_PUBLIC_COMMON_BROWSER_PLUGIN_GUEST_MODE_H_