Implement automatic load of composed/embedded automation trees

ui/views/accessibility/native_view_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 "ui/views/accessibility/native_view_accessibility_win.h"
 
 #include <oleacc.h>
 #include <UIAutomationClient.h>
 
 #include <set>
@@ skipping 1313 matching lines @@
     case ui::AX_ROLE_SLIDER:
       return ROLE_SYSTEM_SLIDER;
     case ui::AX_ROLE_STATIC_TEXT:
       return ROLE_SYSTEM_STATICTEXT;
     case ui::AX_ROLE_TEXT_FIELD:
       return ROLE_SYSTEM_TEXT;
     case ui::AX_ROLE_TITLE_BAR:
       return ROLE_SYSTEM_TITLEBAR;
     case ui::AX_ROLE_TOOLBAR:
       return ROLE_SYSTEM_TOOLBAR;
+    case ui::AX_ROLE_WEB_VIEW:
+      return ROLE_SYSTEM_GROUPING;
     case ui::AX_ROLE_WINDOW:
       return ROLE_SYSTEM_WINDOW;
     case ui::AX_ROLE_CLIENT:
     default:
       // This is the default role for MSAA.
       return ROLE_SYSTEM_CLIENT;
   }
 }
 
 int32 NativeViewAccessibilityWin::MSAAState(const ui::AXViewState& state) {
@@ skipping 185 matching lines @@
     if (view == NULL || view == view_) {
       alert_target_view_storage_ids_.erase(
           alert_target_view_storage_ids_.begin() + i);
     } else {
       ++i;
     }
   }
 }
 
 }  // namespace views