Tracking push events for lucid sleep

extensions/renderer/dispatcher.cc

 // 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.
 
 #include "extensions/renderer/dispatcher.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
@@ skipping 484 matching lines @@
 
   // Tell the browser process when an event has been dispatched with a lazy
   // background page active.
   const Extension* extension = extensions_.GetByID(extension_id);
   if (extension && BackgroundInfo::HasLazyBackgroundPage(extension) &&
       module_name == kEventBindings &&
       function_name == kEventDispatchFunction) {
     RenderView* background_view =
         ExtensionHelper::GetBackgroundPage(extension_id);
     if (background_view) {
-      background_view->Send(
-          new ExtensionHostMsg_EventAck(background_view->GetRoutingID()));
+      int message_id;
+      args.GetInteger(3, &message_id);

[not at google - send to devlin, 2015/02/26 23:24:32]

Can you assert that there actually is a message ID? (or better, make a new IPC)

+      background_view->Send(new ExtensionHostMsg_EventAck(
+          background_view->GetRoutingID(), message_id));
     }
   }
 }
 
 void Dispatcher::ClearPortData(int port_id) {
   // Only the target port side has entries in |port_to_tab_id_map_|. If
   // |port_id| is a source port, std::map::erase() will just silently fail
   // here as a no-op.
   port_to_tab_id_map_.erase(port_id);
 }
@@ skipping 911 matching lines @@
     return v8::Handle<v8::Object>();
 
   if (bind_name)
     *bind_name = split.back();
 
   return bind_object.IsEmpty() ? AsObjectOrEmpty(GetOrCreateChrome(context))
                                : bind_object;
 }
 
 }  // namespace extensions