Allow Spatial Navigation ignore elements with event handlers

Source/core/page/SpatialNavigation.cpp

 /*
  * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Antonio Gomes <tonikitoo@webkit.org>
  *
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 68 matching lines @@
     focusableNode = node;
     isOffscreen = hasOffscreenRect(visibleNode);
     isOffscreenAfterScrolling = hasOffscreenRect(visibleNode, type);
 }
 
 bool isSpatialNavigationEnabled(const LocalFrame* frame)
 {
     return (frame && frame->settings() && frame->settings()->spatialNavigationEnabled());
 }
 
+bool spatialNavigationIgnoresEventHandlers(const LocalFrame* frame)
+{
+    return (frame && frame->settings() && frame->settings()->deviceSupportsTouch());
+}
+
 static bool rectsIntersectOnOrthogonalAxis(WebFocusType type, const LayoutRect& a, const LayoutRect& b)
 {
     switch (type) {
     case WebFocusTypeLeft:
     case WebFocusTypeRight:
         return a.maxY() > b.y() && a.y() < b.maxY();
     case WebFocusTypeUp:
     case WebFocusTypeDown:
         return a.maxX() > b.x() && a.x() < b.maxX();
     default:
@@ skipping 518 matching lines @@
     LayoutRect rect = virtualRectForDirection(type, rectToAbsoluteCoordinates(area.document().frame(), area.computeRect(area.imageElement()->renderer())), 1);
     return rect;
 }
 
 HTMLFrameOwnerElement* frameOwnerElement(FocusCandidate& candidate)
 {
     return candidate.isFrameOwnerElement() ? toHTMLFrameOwnerElement(candidate.visibleNode) : nullptr;
 };
 
 } // namespace blink