Create movementX/Y on MouseEvent

Source/web/WebInputEventConversion.cpp

 /*
  * Copyright (C) 2009 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 524 matching lines @@
             break;
         case MiddleButton:
             modifiers |= WebInputEvent::MiddleButtonDown;
             break;
         case RightButton:
             modifiers |= WebInputEvent::RightButtonDown;
             break;
         }
     } else
         button = WebMouseEvent::ButtonNone;
-    movementX = event.webkitMovementX();
-    movementY = event.webkitMovementY();
+    movementX = event.movementX();
+    movementY = event.movementY();
     clickCount = event.detail();
 }
 
 WebMouseEventBuilder::WebMouseEventBuilder(const Widget* widget, const WebCore::RenderObject* renderObject, const TouchEvent& event)
 {
     if (!event.touches())
         return;
     if (event.touches()->length() != 1) {
         if (event.touches()->length() || event.type() != EventTypeNames::touchend || !event.changedTouches() || event.changedTouches()->length() != 1)
             return;
@@ skipping 235 matching lines @@
     modifiers = getWebInputModifiers(event);
 
     globalX = event.screenX();
     globalY = event.screenY();
     IntPoint localPoint = convertAbsoluteLocationForRenderObject(event.absoluteLocation(), *renderObject);
     x = localPoint.x();
     y = localPoint.y();
 }
 
 } // namespace blink