Revert of Screen.orientation lock API implementation for Windows8 and later.

content/browser/screen_orientation/screen_orientation_delegate_win.h

-// Copyright 2016 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_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DELEGATE_WIN_H_
-#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DELEGATE_WIN_H_
-
-#include "content/public/browser/screen_orientation_delegate.h"
-
-namespace content {
-
-class ScreenOrientationDelegateWin : public ScreenOrientationDelegate {
- public:
-  ScreenOrientationDelegateWin();
-  ~ScreenOrientationDelegateWin() override;
-
- private:
-  // content::ScreenOrientationDelegate:
-  bool FullScreenRequired(WebContents* web_contents) override;
-  void Lock(WebContents* web_contents,
-            blink::WebScreenOrientationLockType lock_orientation) override;
-  bool ScreenOrientationProviderSupported() override;
-  void Unlock(WebContents* web_contents) override;
-
-  DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDelegateWin);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DELEGATE_WIN_H_