Set up the infrastructure for Extension event metrics.

chrome/browser/extensions/api/gcd_private/gcd_private_api.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 "chrome/browser/extensions/api/gcd_private/gcd_private_api.h"
 
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 39 matching lines @@
 const char kPrivetKeyWifi[] = "wifi";
 const char kPrivetKeyPassphrase[] = "passphrase";
 const char kPrivetKeySSID[] = "ssid";
 const char kPrivetKeyPassphraseDotted[] = "wifi.passphrase";
 
 scoped_ptr<Event> MakeDeviceStateChangedEvent(
     const gcd_private::GCDDevice& device) {
   scoped_ptr<base::ListValue> params =
       gcd_private::OnDeviceStateChanged::Create(device);
   scoped_ptr<Event> event(
-      new Event(gcd_private::OnDeviceStateChanged::kEventName, params.Pass()));
+      new Event(events::UNKNOWN, gcd_private::OnDeviceStateChanged::kEventName,
+                params.Pass()));
   return event.Pass();
 }
 
 scoped_ptr<Event> MakeDeviceRemovedEvent(const std::string& device) {
   scoped_ptr<base::ListValue> params =
       gcd_private::OnDeviceRemoved::Create(device);
-  scoped_ptr<Event> event(
-      new Event(gcd_private::OnDeviceRemoved::kEventName, params.Pass()));
+  scoped_ptr<Event> event(new Event(events::UNKNOWN,
+                                    gcd_private::OnDeviceRemoved::kEventName,
+                                    params.Pass()));
   return event.Pass();
 }
 
 GcdPrivateAPI::GCDApiFlowFactoryForTests* g_gcd_api_flow_factory = NULL;
 
 base::LazyInstance<BrowserContextKeyedAPIFactory<GcdPrivateAPI> > g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 scoped_ptr<local_discovery::GCDApiFlow> MakeGCDApiFlow(Profile* profile) {
   if (g_gcd_api_flow_factory) {
@@ skipping 802 matching lines @@
 }
 
 GcdPrivateGetCommandsListFunction::~GcdPrivateGetCommandsListFunction() {
 }
 
 bool GcdPrivateGetCommandsListFunction::RunAsync() {
   return false;
 }
 
 }  // namespace extensions