Move VISUAL_STATE promise to activation

content/renderer/message_delivery_policy.h

 // 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.
 
 #ifndef CONTENT_RENDERER_MESSAGE_DELIVERY_POLICY_H_
 #define CONTENT_RENDERER_MESSAGE_DELIVERY_POLICY_H_
 
 namespace content {
 
 enum MessageDeliveryPolicy {
   // If a commit was requested before the message was enqueued the message
   // will be delivered with the swap corresponding to that commit. Otherwise
   // the message will be sent immediately using regular IPC.
   // If the commit is aborted or optimized out the message is sent using regular
   // IPC.
   MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE,
   // The message will be delivered with the next swap.
   // If the swap is optimized out, the message is sent using regular IPC.
   // If the swap fails the message remains enqueued.
   MESSAGE_DELIVERY_POLICY_WITH_NEXT_SWAP,
+  // The message will be delivered with the activation of the frame
+  // correspnding to the current state of the DOM at the time the
+  // request was queued.
+  MESSAGE_DELIVERY_POLICY_WITH_ACTIVATION,
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MESSAGE_DELIVERY_POLICY_H_