Remove screen capturers from media/video/capture/screen.

media/video/capture/screen/win/scoped_thread_desktop.h

-// 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.
-
-#ifndef MEDIA_VIDEO_CAPTURE_SCREEN_WIN_SCOPED_THREAD_DESKTOP_H_
-#define MEDIA_VIDEO_CAPTURE_SCREEN_WIN_SCOPED_THREAD_DESKTOP_H_
-
-#include <windows.h>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "media/base/media_export.h"
-
-namespace media {
-
-class Desktop;
-
-class MEDIA_EXPORT ScopedThreadDesktop {
- public:
-  ScopedThreadDesktop();
-  ~ScopedThreadDesktop();
-
-  // Returns true if |desktop| has the same desktop name as the currently
-  // assigned desktop (if assigned) or as the initial desktop (if not assigned).
-  // Returns false in any other case including failing Win32 APIs and
-  // uninitialized desktop handles.
-  bool IsSame(const Desktop& desktop);
-
-  // Reverts the calling thread to use the initial desktop.
-  void Revert();
-
-  // Assigns |desktop| to be the calling thread. Returns true if the thread has
-  // been switched to |desktop| successfully.
-  bool SetThreadDesktop(scoped_ptr<Desktop> desktop);
-
- private:
-  // The desktop handle assigned to the calling thread by Set
-  scoped_ptr<Desktop> assigned_;
-
-  // The desktop handle assigned to the calling thread at creation.
-  scoped_ptr<Desktop> initial_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedThreadDesktop);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_VIDEO_CAPTURE_SCREEN_WIN_SCOPED_THREAD_DESKTOP_H_