Updates table-like objects when cells are added or removed.

content/renderer/accessibility/render_accessibility_impl.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/renderer/accessibility/render_accessibility_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <queue>
@@ skipping 243 matching lines @@
     }
   }
 
 #if defined(OS_ANDROID)
   // Force the newly focused node to be re-serialized so we include its
   // inline text boxes.
   if (event == ui::AX_EVENT_FOCUS)
     serializer_.DeleteClientSubtree(obj);
 #endif
 
+  // If some cell IDs have been added or removed, we need to update the whole
+  // table.
+  if (obj.Role() == blink::kWebAXRoleRow &&
+      event == ui::AX_EVENT_CHILDREN_CHANGED) {
+    WebAXObject table_like_object = obj.ParentObject();
+    if (!table_like_object.IsDetached()) {
+      serializer_.DeleteClientSubtree(table_like_object);
+      HandleAXEvent(table_like_object, ui::AX_EVENT_CHILDREN_CHANGED);
+    }
+  }
+
   // Add the accessibility object to our cache and ensure it's valid.
   AccessibilityHostMsg_EventParams acc_event;
   acc_event.id = obj.AxID();
   acc_event.event_type = event;
 
   if (blink::WebUserGestureIndicator::IsProcessingUserGesture())
     acc_event.event_from = ui::AX_EVENT_FROM_USER;
   else if (during_action_)
     acc_event.event_from = ui::AX_EVENT_FROM_ACTION;
   else
@@ skipping 445 matching lines @@
 
   const WebDocument& document = GetMainDocument();
   if (document.IsNull())
     return;
 
   WebAXObject::FromWebDocument(document).ScrollToMakeVisibleWithSubFocus(
       WebRect(bounds.x(), bounds.y(), bounds.width(), bounds.height()));
 }
 
 }  // namespace content