Tracking push events for lucid sleep

extensions/common/extension_messages.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.
 
 // IPC messages for extensions.
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 #include <vector>
 
@@ skipping 609 matching lines @@
 
 // Notify the browser that the given extension is no longer interested in
 // instances of the named event that satisfy the filter.
 IPC_MESSAGE_CONTROL4(ExtensionHostMsg_RemoveFilteredListener,
                      std::string /* extension_id */,
                      std::string /* name */,
                      base::DictionaryValue /* filter */,
                      bool /* lazy */)
 
 // Notify the browser that an event has finished being dispatched.
-IPC_MESSAGE_ROUTED0(ExtensionHostMsg_EventAck)
+IPC_MESSAGE_ROUTED1(ExtensionHostMsg_EventAck,
+                    int /* message_id */)
 
 // Open a channel to all listening contexts owned by the extension with
 // the given ID.  This always returns a valid port ID which can be used for
 // sending messages.  If an error occurred, the opener will be notified
 // asynchronously.
 IPC_SYNC_MESSAGE_CONTROL4_1(ExtensionHostMsg_OpenChannelToExtension,
                             int /* routing_id */,
                             ExtensionMsg_ExternalConnectionInfo,
                             std::string /* channel_name */,
                             bool /* include_tls_channel_id */,
@@ skipping 168 matching lines @@
                     int /* acc_obj_id */,
                     base::string16 /* selector */)
 
 // Result of a query selector request.
 // result_acc_obj_id is the accessibility tree ID of the result element; 0
 // indicates no result.
 IPC_MESSAGE_ROUTED3(ExtensionHostMsg_AutomationQuerySelector_Result,
                     int /* request_id */,
                     ExtensionHostMsg_AutomationQuerySelector_Error /* error */,
                     int /* result_acc_obj_id */)