Expose setSequentialFocusNavigationStartingPoint to accessibility.

third_party/WebKit/Source/modules/accessibility/AXNodeObject.cpp

 /*
  * Copyright (C) 2012, 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 2147 matching lines @@
       UserGestureToken::create(UserGestureToken::NewGesture));
   alterSliderValue(true);
 }
 
 void AXNodeObject::decrement() {
   UserGestureIndicator gestureIndicator(
       UserGestureToken::create(UserGestureToken::NewGesture));
   alterSliderValue(false);
 }
 
+void AXNodeObject::setSequentialFocusNavigationStartingPoint() {
+  if (!getNode())
+    return;
+
+  getNode()->document().setSequentialFocusNavigationStartingPoint(getNode());
+}
+
 void AXNodeObject::childrenChanged() {
   // This method is meant as a quick way of marking a portion of the
   // accessibility tree dirty.
   if (!getNode() && !getLayoutObject())
     return;
 
   // If this is not part of the accessibility tree because an ancestor
   // has only presentational children, invalidate this object's children but
   // skip sending a notification and skip walking up the ancestors.
   if (ancestorForWhichThisIsAPresentationalChild()) {
@@ skipping 776 matching lines @@
   }
   return placeholder;
 }
 
 DEFINE_TRACE(AXNodeObject) {
   visitor->trace(m_node);
   AXObject::trace(visitor);
 }
 
 }  // namespace blink