[WebRTC] Implement Windows ScreenDrawer to test ScreenCapturer*

webrtc/modules/desktop_capture/screen_drawer_mac.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/modules/audio_coding/neteq/packet.h"
+// TODO(zijiehe): Implement ScreenDrawerMac
+
+#include "webrtc/modules/desktop_capture/screen_drawer.h"
 
 namespace webrtc {
 
-Packet::Packet() = default;
-
-Packet::~Packet() = default;
+// static
+std::unique_ptr<ScreenDrawer> ScreenDrawer::Create() {
+  return nullptr;
+}
 
 }  // namespace webrtc