ARIA state/property aria-autocomplete should expose IA2_STATE_SUPPORTS_AUTOCOMPLETION.

content/browser/accessibility/browser_accessibility_win.cc

 // Copyright (c) 2012 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/browser/accessibility/browser_accessibility_win.h"
 
 #include <UIAutomationClient.h>
 #include <UIAutomationCoreApi.h>
 
 #include "base/strings/string_number_conversions.h"
@@ skipping 2891 matching lines @@
 //
 // Private methods.
 //
 
 // Called every time this node's data changes.
 void BrowserAccessibilityWin::OnDataChanged() {
   BrowserAccessibility::OnDataChanged();
 
   InitRoleAndState();
 
+  // Expose autocomplete attribute for combobox and textbox.
+  StringAttributeToIA2(ui::AX_ATTR_AUTO_COMPLETE, "autocomplete");
+
   // Expose the "display" and "tag" attributes.
   StringAttributeToIA2(ui::AX_ATTR_DISPLAY, "display");
   StringAttributeToIA2(ui::AX_ATTR_TEXT_INPUT_TYPE, "text-input-type");
   StringAttributeToIA2(ui::AX_ATTR_HTML_TAG, "tag");
   StringAttributeToIA2(ui::AX_ATTR_ROLE, "xml-roles");
 
   // Expose "level" attribute for headings, trees, etc.
   IntAttributeToIA2(ui::AX_ATTR_HIERARCHICAL_LEVEL, "level");
 
   // Expose the set size and position in set for listbox options.
@@ skipping 451 matching lines @@
   base::string16 invalid;
   if (GetHtmlAttribute("aria-invalid", &invalid))
     ia2_state_ |= IA2_STATE_INVALID_ENTRY;
 
   if (GetBoolAttribute(ui::AX_ATTR_BUTTON_MIXED))
     ia_state_ |= STATE_SYSTEM_MIXED;
 
   if (GetBoolAttribute(ui::AX_ATTR_CAN_SET_VALUE))
     ia2_state_ |= IA2_STATE_EDITABLE;
 
+  if (!GetStringAttribute(ui::AX_ATTR_AUTO_COMPLETE).empty())
+    ia2_state_ |= IA2_STATE_SUPPORTS_AUTOCOMPLETION;
+
   base::string16 html_tag = GetString16Attribute(
       ui::AX_ATTR_HTML_TAG);
   ia_role_ = 0;
   ia2_role_ = 0;
   switch (GetRole()) {
     case ui::AX_ROLE_ALERT:
       ia_role_ = ROLE_SYSTEM_ALERT;
       break;
     case ui::AX_ROLE_ALERT_DIALOG:
       ia_role_ = ROLE_SYSTEM_DIALOG;
@@ skipping 440 matching lines @@
   // The role should always be set.
   DCHECK(!role_name_.empty() || ia_role_);
 
   // If we didn't explicitly set the IAccessible2 role, make it the same
   // as the MSAA role.
   if (!ia2_role_)
     ia2_role_ = ia_role_;
 }
 
 }  // namespace content