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

media/video/capture/screen/screen_capturer.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_SCREEN_CAPTURER_H_
-#define MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_H_
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "media/base/media_export.h"
-#include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
-
-namespace media {
-
-struct MouseCursorShape;
-
-// Class used to capture video frames asynchronously.
-//
-// The full capture sequence is as follows:
-//
-// (1) Start
-//     This is when pre-capture steps are executed, such as flagging the
-//     display to prevent it from sleeping during a session.
-//
-// (2) CaptureFrame
-//     This is where the bits for the invalid rects are packaged up and sent
-//     to the encoder.
-//     A screen capture is performed if needed. For example, Windows requires
-//     a capture to calculate the diff from the previous screen, whereas the
-//     Mac version does not.
-//
-// Implementation has to ensure the following guarantees:
-// 1. Double buffering
-//    Since data can be read while another capture action is happening.
-class MEDIA_EXPORT ScreenCapturer
-    : public NON_EXPORTED_BASE(webrtc::DesktopCapturer) {
- public:
-  // Provides callbacks used by the capturer to pass captured video frames and
-  // mouse cursor shapes to the processing pipeline.
-  //
-  // TODO(sergeyu): Move cursor shape capturing to a separate class because it's
-  // unrelated.
-  class MEDIA_EXPORT MouseShapeObserver {
-   public:
-    // Called when the cursor shape has changed.
-    virtual void OnCursorShapeChanged(
-        scoped_ptr<MouseCursorShape> cursor_shape) = 0;
-
-   protected:
-    virtual ~MouseShapeObserver() {}
-  };
-
-  virtual ~ScreenCapturer() {}
-
-  // Creates platform-specific capturer.
-  static scoped_ptr<ScreenCapturer> Create();
-
-#if defined(OS_LINUX)
-  // Creates platform-specific capturer and instructs it whether it should use
-  // X DAMAGE support.
-  static scoped_ptr<ScreenCapturer> CreateWithXDamage(bool use_x_damage);
-#elif defined(OS_WIN)
-  // Creates Windows-specific capturer and instructs it whether or not to
-  // disable desktop compositing.
-  static scoped_ptr<ScreenCapturer> CreateWithDisableAero(bool disable_aero);
-#endif  // defined(OS_WIN)
-
-  // Called at the beginning of a capturing session. |mouse_shape_observer| must
-  // remain valid until the capturer is destroyed.
-  virtual void SetMouseShapeObserver(
-      MouseShapeObserver* mouse_shape_observer) = 0;
-};
-
-}  // namespace media
-
-#endif  // MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_H_