Revert of Move compositor InputHandler from RenderViewImpl to RenderWidget.

third_party/WebKit/Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 314 matching lines @@
   void mouseContextMenu(const WebMouseEvent&);
   void mouseDoubleClick(const WebMouseEvent&);
 
   bool detectContentOnTouch(
       const GestureEventWithHitTestResults& targetedEvent);
   bool startPageScaleAnimation(const IntPoint& targetPosition,
                                bool useAnchor,
                                float newScale,
                                double durationInSeconds);
 
+  void hasTouchEventHandlers(bool);
+
   // WebGestureCurveTarget implementation for fling.
   bool scrollBy(const WebFloatSize& delta,
                 const WebFloatSize& velocity) override;
 
   // Handles context menu events orignated via the the keyboard. These
   // include the VK_APPS virtual key and the Shift+F10 combine. Code is
   // based on the Webkit function bool WebView::handleContextMenuEvent(WPARAM
   // wParam, LPARAM lParam) in webkit\webkit\win\WebView.cpp. The only
   // significant change in this function is the code to convert from a
   // Keyboard event to the Right Mouse button down event.
@@ skipping 394 matching lines @@
   Persistent<ResizeViewportAnchor> m_resizeViewportAnchor;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 }  // namespace blink
 
 #endif