Revert 111189 - Add gamepad hardware data fetcher, and higher level thread container

content/browser/gamepad/data_fetcher.h

-// Copyright (c) 2011 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_GAMEPAD_DATA_FETCHER_H_
-#define CONTENT_BROWSER_GAMEPAD_DATA_FETCHER_H_
-
-namespace WebKit {
-class WebGamepads;
-}
-
-namespace gamepad {
-
-class DataFetcher {
- public:
-  virtual ~DataFetcher() {}
-  virtual void GetGamepadData(WebKit::WebGamepads* pads,
-                              bool devices_changed_hint) = 0;
-};
-
-} // namespace gamepad
-
-#endif  // CONTENT_BROWSER_GAMEPAD_DATA_FETCHER_H_