Revert of [KeyEvent Mac] Move WebInputEventFactory into chromium.

content/browser/renderer_host/input/web_input_event_builders_mac.h

-// Copyright 2015 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_RENDERER_HOST_INPUT_WEB_INPUT_EVENT_BUILDERS_MAC_H_
-#define CONTENT_BROWSER_RENDERER_HOST_INPUT_WEB_INPUT_EVENT_BUILDERS_MAC_H_
-
-#include "content/common/content_export.h"
-#include "third_party/WebKit/public/web/WebInputEvent.h"
-
-@class NSEvent;
-@class NSView;
-
-namespace content {
-
-class CONTENT_EXPORT WebKeyboardEventBuilder {
- public:
-  static blink::WebKeyboardEvent Build(NSEvent* event);
-};
-
-class CONTENT_EXPORT WebMouseEventBuilder {
- public:
-  static blink::WebMouseEvent Build(NSEvent* event, NSView* view);
-};
-
-class CONTENT_EXPORT WebMouseWheelEventBuilder {
- public:
-  static blink::WebMouseWheelEvent Build(NSEvent* event,
-                                         NSView* view,
-                                         bool can_rubberband_left,
-                                         bool can_rubberband_right);
-};
-
-class CONTENT_EXPORT WebGestureEventBuilder {
- public:
-  static blink::WebGestureEvent Build(NSEvent*, NSView*);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_WEB_INPUT_EVENT_BUILDERS_MAC_H_