Change in focus with movement of Arrow keys for RTL radio buttons

third_party/WebKit/Source/core/html/forms/RadioInputType.cpp

 /*
  * Copyright (C) 2005, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 83 matching lines @@
 
     // Left and up mean "previous radio button".
     // Right and down mean "next radio button".
     // Tested in WinIE, and even for RTL, left still means previous radio button
     // (and so moves to the right). Seems strange, but we'll match it. However,
     // when using Spatial Navigation, we need to be able to navigate without
     // changing the selection.
     Document& document = element().document();
     if (isSpatialNavigationEnabled(document.frame()))
         return;
-    bool forward = (key == "Down" || key == "Right");
+    bool forward = computedTextDirection() == RTL ? (key == "Down" || key == "Left") : (key == "Down" || key == "Right");
 
     // We can only stay within the form's children if the form hasn't been demoted to a leaf because
     // of malformed HTML.
     HTMLInputElement* inputElement = findNextFocusableRadioButtonInGroup(toHTMLInputElement(&element()), forward);
     if (!inputElement) {
         // Traverse in reverse direction till last or first radio button
         forward = !(forward);
         HTMLInputElement* nextInputElement = findNextFocusableRadioButtonInGroup(toHTMLInputElement(&element()), forward);
         while (nextInputElement) {
             inputElement = nextInputElement;
@@ skipping 87 matching lines @@
     // The work we did in willDispatchClick was default handling.
     event->setDefaultHandled();
 }
 
 bool RadioInputType::shouldAppearIndeterminate() const
 {
     return !element().checkedRadioButtonForGroup();
 }
 
 } // namespace blink