Set up the infrastructure for Extension event metrics.

extensions/browser/api/bluetooth/bluetooth_private_apitest.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 "base/command_line.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "device/bluetooth/test/mock_bluetooth_adapter.h"
 #include "device/bluetooth/test/mock_bluetooth_device.h"
@@ skipping 83 matching lines @@
   void DispatchPairingEvent(bt_private::PairingEventType pairing_event_type) {
     bt_private::PairingEvent pairing_event;
     pairing_event.pairing = pairing_event_type;
     pairing_event.device.name.reset(new std::string(kDeviceName));
     pairing_event.device.address = mock_device_->GetAddress();
     pairing_event.device.vendor_id_source = bt::VENDOR_ID_SOURCE_USB;
     pairing_event.device.type = bt::DEVICE_TYPE_PHONE;
 
     scoped_ptr<base::ListValue> args =
         bt_private::OnPairing::Create(pairing_event);
-    scoped_ptr<Event> event(
-        new Event(bt_private::OnPairing::kEventName, args.Pass()));
+    scoped_ptr<Event> event(new Event(
+        events::UNKNOWN, bt_private::OnPairing::kEventName, args.Pass()));
     EventRouter::Get(browser()->profile())->DispatchEventToExtension(
         kTestExtensionId, event.Pass());
   }
 
   void DispatchAuthorizePairingEvent() {
     DispatchPairingEvent(bt_private::PAIRING_EVENT_TYPE_REQUESTAUTHORIZATION);
   }
 
   void DispatchPincodePairingEvent() {
     DispatchPairingEvent(bt_private::PAIRING_EVENT_TYPE_REQUESTPINCODE);
@@ skipping 129 matching lines @@
       .WillOnce(Return(true));
   EXPECT_CALL(*mock_discovery_session_,
               SetDiscoveryFilterRaw(Eq(nullptr), _, _))
       .Times(1)
       .WillOnce(InvokeCallbackArgument<1>());
   ASSERT_TRUE(RunComponentExtensionTest("bluetooth_private/discovery_filter"))
       << message_;
 }
 
 }  // namespace extensions