Mapping roles to make Chrome UI accessible on linux(ATK).

ui/accessibility/platform/ax_platform_node_auralinux.cc

 // Copyright 2015 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 "ui/accessibility/platform/ax_platform_node_auralinux.h"
 
 #include "base/command_line.h"
 #include "base/strings/sys_string_conversions.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/accessibility/platform/atk_util_auralinux.h"
@@ skipping 213 matching lines @@
 AXPlatformNode* AXPlatformNodeAuraLinux::application_ = nullptr;
 
 // static
 void AXPlatformNodeAuraLinux::SetApplication(AXPlatformNode* application) {
   application_ = application;
   AtkUtilAuraLinux::GetInstance();
 }
 
 AtkRole AXPlatformNodeAuraLinux::GetAtkRole() {
   switch (GetData().role) {
+    case ui::AX_ROLE_ALERT:
+      return ATK_ROLE_ALERT;
     case ui::AX_ROLE_APPLICATION:
       return ATK_ROLE_APPLICATION;
     case ui::AX_ROLE_BUTTON:
       return ATK_ROLE_PUSH_BUTTON;
     case ui::AX_ROLE_CHECK_BOX:
       return ATK_ROLE_CHECK_BOX;
     case ui::AX_ROLE_COMBO_BOX:
       return ATK_ROLE_COMBO_BOX;
+    case ui::AX_ROLE_GROUP:
+      return ATK_ROLE_PANEL;
+    case ui::AX_ROLE_MENU_ITEM:
+      return ATK_ROLE_MENU_ITEM;
+    case ui::AX_ROLE_SPLITTER:
+      return ATK_ROLE_SEPARATOR;
     case ui::AX_ROLE_STATIC_TEXT:
       return ATK_ROLE_TEXT;
+    case ui::AX_ROLE_TAB:
+      return ATK_ROLE_PAGE_TAB;
+    case ui::AX_ROLE_TAB_LIST:
+      return ATK_ROLE_PAGE_TAB_LIST;
     case ui::AX_ROLE_TEXT_FIELD:
       return ATK_ROLE_ENTRY;
+    case ui::AX_ROLE_TOOLBAR:
+      return ATK_ROLE_TOOL_BAR;
     case ui::AX_ROLE_WINDOW:
       return ATK_ROLE_WINDOW;
     default:
       return ATK_ROLE_UNKNOWN;
   }
 }
 
 AXPlatformNodeAuraLinux::AXPlatformNodeAuraLinux()
     : atk_object_(nullptr) {
 }
@@ skipping 18 matching lines @@
 }
 
 void AXPlatformNodeAuraLinux::NotifyAccessibilityEvent(ui::AXEvent event_type) {
 }
 
 int AXPlatformNodeAuraLinux::GetIndexInParent() {
   return 0;
 }
 
 }  // namespace ui