Set up the infrastructure for Extension event metrics.

chrome/browser/extensions/api/dial/dial_api.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 "chrome/browser/extensions/api/dial/dial_api.h"
 
 #include <vector>
 
 #include "base/time/time.h"
 #include "chrome/browser/extensions/api/dial/dial_api_factory.h"
@@ skipping 87 matching lines @@
 
   std::vector<linked_ptr<api::dial::DialDevice> > args;
   for (DialRegistry::DeviceList::const_iterator it = devices.begin();
        it != devices.end(); ++it) {
     linked_ptr<api::dial::DialDevice> api_device =
         make_linked_ptr(new api::dial::DialDevice);
     it->FillDialDevice(api_device.get());
     args.push_back(api_device);
   }
   scoped_ptr<base::ListValue> results = api::dial::OnDeviceList::Create(args);
-  scoped_ptr<Event> event(
-      new Event(dial::OnDeviceList::kEventName, results.Pass()));
+  scoped_ptr<Event> event(new Event(
+      events::UNKNOWN, dial::OnDeviceList::kEventName, results.Pass()));
   EventRouter::Get(profile_)->BroadcastEvent(event.Pass());
 }
 
 void DialAPI::SendErrorOnUIThread(const DialRegistry::DialErrorCode code) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   api::dial::DialError dial_error;
   switch (code) {
     case DialRegistry::DIAL_NO_LISTENERS:
       dial_error.code = api::dial::DIAL_ERROR_CODE_NO_LISTENERS;
       break;
     case DialRegistry::DIAL_NO_INTERFACES:
       dial_error.code = api::dial::DIAL_ERROR_CODE_NO_VALID_NETWORK_INTERFACES;
       break;
     case DialRegistry::DIAL_CELLULAR_NETWORK:
       dial_error.code = api::dial::DIAL_ERROR_CODE_CELLULAR_NETWORK;
       break;
     case DialRegistry::DIAL_NETWORK_DISCONNECTED:
       dial_error.code = api::dial::DIAL_ERROR_CODE_NETWORK_DISCONNECTED;
       break;
     case DialRegistry::DIAL_SOCKET_ERROR:
       dial_error.code = api::dial::DIAL_ERROR_CODE_SOCKET_ERROR;
       break;
     default:
       dial_error.code = api::dial::DIAL_ERROR_CODE_UNKNOWN;
       break;
   }
 
   scoped_ptr<base::ListValue> results = api::dial::OnError::Create(dial_error);
-  scoped_ptr<Event> event(new Event(dial::OnError::kEventName, results.Pass()));
+  scoped_ptr<Event> event(
+      new Event(events::UNKNOWN, dial::OnError::kEventName, results.Pass()));
   EventRouter::Get(profile_)->BroadcastEvent(event.Pass());
 }
 
 void DialAPI::ShutdownOnUIThread() {}
 
 namespace api {
 
 DialDiscoverNowFunction::DialDiscoverNowFunction()
     : dial_(NULL), result_(false) {
 }
@@ skipping 12 matching lines @@
 
 bool DialDiscoverNowFunction::Respond() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   SetResult(new base::FundamentalValue(result_));
   return true;
 }
 
 }  // namespace api
 
 }  // namespace extensions