[Blink] Adding Writing direction to the context menu for linux gtk

Source/web/ContextMenuClientImpl.cpp

 /*
  * Copyright (C) 2009, 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:
  *
  *     * 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 330 matching lines @@
         if (form && r.innerNonSharedNode()->hasTagName(HTMLNames::inputTag)) {
             HTMLInputElement* selectedElement = toHTMLInputElement(r.innerNonSharedNode());
             if (selectedElement) {
                 WebSearchableFormData ws = WebSearchableFormData(WebFormElement(form), WebInputElement(selectedElement));
                 if (ws.url().isValid())
                     data.keywordURL = ws.url();
             }
         }
     }
 
-#if OS(MACOSX)
+#if OS(MACOSX) || OS(LINUX)
     if (selectedFrame->editor().selectionHasStyle(CSSPropertyDirection, "ltr") != FalseTriState)
         data.writingDirectionLeftToRight |= WebContextMenuData::CheckableMenuItemChecked;
     if (selectedFrame->editor().selectionHasStyle(CSSPropertyDirection, "rtl") != FalseTriState)
         data.writingDirectionRightToLeft |= WebContextMenuData::CheckableMenuItemChecked;
-#endif // OS(MACOSX)
+#endif // OS(MACOSX) || OS(LINUX)
 
     // Now retrieve the security info.
     DocumentLoader* dl = selectedFrame->loader().documentLoader();
     WebDataSource* ds = WebDataSourceImpl::fromDocumentLoader(dl);
     if (ds)
         data.securityInfo = ds->response().securityInfo();
 
     data.referrerPolicy = static_cast<WebReferrerPolicy>(selectedFrame->document()->referrerPolicy());
 
     // Filter out custom menu elements and add them into the data.
@@ skipping 48 matching lines @@
         outputItems[i] = subItems[i];
     subMenuItems.swap(outputItems);
 }
 
 void ContextMenuClientImpl::populateCustomMenuItems(const WebCore::ContextMenu* defaultMenu, WebContextMenuData* data)
 {
     populateSubMenuItems(defaultMenu->items(), data->customItems);
 }
 
 } // namespace blink