Implement aria-placeholder

content/renderer/accessibility/blink_ax_tree_source.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/accessibility/blink_ax_tree_source.h"
 
 #include <stddef.h>
 
 #include <set>
 
@@ skipping 324 matching lines @@
   blink::WebString web_description = src.description(
       nameFrom, descriptionFrom, descriptionObjects);
   if (!web_description.isEmpty()) {
     dst->AddStringAttribute(ui::AX_ATTR_DESCRIPTION, web_description.utf8());
     dst->AddIntAttribute(ui::AX_ATTR_DESCRIPTION_FROM,
         AXDescriptionFromFromBlink(descriptionFrom));
     AddIntListAttributeFromWebObjects(
         ui::AX_ATTR_DESCRIBEDBY_IDS, descriptionObjects, dst);
   }
 
-  blink::WebString web_placeholder = src.placeholder(nameFrom, descriptionFrom);
+  blink::WebString web_placeholder = src.placeholder(nameFrom);
   if (!web_placeholder.isEmpty())
     dst->AddStringAttribute(ui::AX_ATTR_PLACEHOLDER, web_placeholder.utf8());
 
   std::string value;
   if (src.valueDescription().length()) {
     dst->AddStringAttribute(ui::AX_ATTR_VALUE, src.valueDescription().utf8());
   } else {
     dst->AddStringAttribute(ui::AX_ATTR_VALUE, src.stringValue().utf8());
   }
 
@@ skipping 383 matching lines @@
     return WebAXObject();
 
   WebDocument document = render_frame_->GetWebFrame()->document();
   if (!document.isNull())
     return document.accessibilityObject();
 
   return WebAXObject();
 }
 
 }  // namespace content