Set up the infrastructure for Extension event metrics.

extensions/browser/api/serial/serial_event_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/browser/api/serial/serial_event_dispatcher.h"
 
 #include "base/lazy_instance.h"
 #include "extensions/browser/api/serial/serial_connection.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extensions_browser_client.h"
@@ skipping 81 matching lines @@
   DCHECK_CURRENTLY_ON(params.thread_id);
 
   // Note that an error (e.g. timeout) does not necessarily mean that no data
   // was read, so we may fire an onReceive regardless of any error code.
   if (data.size() > 0) {
     serial::ReceiveInfo receive_info;
     receive_info.connection_id = params.connection_id;
     receive_info.data = data;
     scoped_ptr<base::ListValue> args = serial::OnReceive::Create(receive_info);
     scoped_ptr<extensions::Event> event(
-        new extensions::Event(serial::OnReceive::kEventName, args.Pass()));
+        new extensions::Event(extensions::events::UNKNOWN,
+                              serial::OnReceive::kEventName, args.Pass()));
     PostEvent(params, event.Pass());
   }
 
   if (error != serial::RECEIVE_ERROR_NONE) {
     serial::ReceiveErrorInfo error_info;
     error_info.connection_id = params.connection_id;
     error_info.error = error;
     scoped_ptr<base::ListValue> args =
         serial::OnReceiveError::Create(error_info);
     scoped_ptr<extensions::Event> event(
-        new extensions::Event(serial::OnReceiveError::kEventName, args.Pass()));
+        new extensions::Event(extensions::events::UNKNOWN,
+                              serial::OnReceiveError::kEventName, args.Pass()));
     PostEvent(params, event.Pass());
     if (ShouldPauseOnReceiveError(error)) {
       SerialConnection* connection =
           params.connections->Get(params.extension_id, params.connection_id);
       if (connection)
         connection->set_paused(true);
     }
   }
 
   // Queue up the next read operation.
@@ skipping 26 matching lines @@
     return;
 
   EventRouter* router = EventRouter::Get(context);
   if (router)
     router->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 }  // namespace core_api
 
 }  // namespace extensions