Allow postponed rail application for touch scrolling - blink side.

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 214 matching lines @@
         m_type = PlatformEvent::GestureFlingStart;
         break;
     case WebInputEvent::GestureScrollUpdate:
         m_type = PlatformEvent::GestureScrollUpdate;
         m_data.m_scroll.m_deltaX = scaleDeltaToWindow(widget, e.data.scrollUpdate.deltaX);
         m_data.m_scroll.m_deltaY = scaleDeltaToWindow(widget, e.data.scrollUpdate.deltaY);
         m_data.m_scroll.m_velocityX = e.data.scrollUpdate.velocityX;
         m_data.m_scroll.m_velocityY = e.data.scrollUpdate.velocityY;
         m_data.m_scroll.m_preventPropagation = e.data.scrollUpdate.preventPropagation;
         m_data.m_scroll.m_inertial = e.data.scrollUpdate.inertial;
+        m_data.m_scroll.m_railsMode = static_cast<PlatformEvent::RailsMode>(e.data.scrollUpdate.railsMode);
         break;
     case WebInputEvent::GestureTap:
         m_type = PlatformEvent::GestureTap;
         m_area = expandedIntSize(scaleSizeToWindow(widget, FloatSize(e.data.tap.width, e.data.tap.height)));
         m_data.m_tap.m_tapCount = e.data.tap.tapCount;
         break;
     case WebInputEvent::GestureTapUnconfirmed:
         m_type = PlatformEvent::GestureTapUnconfirmed;
         m_area = expandedIntSize(scaleSizeToWindow(widget, FloatSize(e.data.tap.width, e.data.tap.height)));
         break;
@@ skipping 570 matching lines @@
     modifiers = getWebInputModifiers(event);
 
     globalX = event.screenX();
     globalY = event.screenY();
     IntPoint localPoint = convertAbsoluteLocationForLayoutObject(event.absoluteLocation(), *layoutObject);
     x = localPoint.x();
     y = localPoint.y();
 }
 
 } // namespace blink