Set up the infrastructure for Extension event metrics.

chrome/browser/extensions/api/location/location_manager.cc

 // Copyright (c) 2013 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/location/location_manager.h"
 
 #include <math.h>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 15 matching lines @@
 // TODO(vadimt): Add tests.
 namespace extensions {
 
 namespace location = api::location;
 
 namespace updatepolicy {
 
 // Base class for all update policies for sending a location.
 class UpdatePolicy : public base::RefCounted<UpdatePolicy> {
  public:
-  explicit UpdatePolicy() {}
+  UpdatePolicy() {}
 
   // True if the caller should send an update based off of this policy.
   virtual bool ShouldSendUpdate(const content::Geoposition&) const = 0;
 
   // Updates any policy state on reporting a position.
   virtual void OnPositionReported(const content::Geoposition&) = 0;
 
  protected:
   virtual ~UpdatePolicy() {}
 
@@ skipping 278 matching lines @@
 
     args->Append(location.ToValue().release());
     event_name = location::OnLocationUpdate::kEventName;
   } else {
     // Set data for onLocationError event.
     // TODO(vadimt): Set name.
     args->AppendString(position.error_message);
     event_name = location::OnLocationError::kEventName;
   }
 
-  scoped_ptr<Event> event(new Event(event_name, args.Pass()));
+  scoped_ptr<Event> event(new Event(events::UNKNOWN, event_name, args.Pass()));
 
   EventRouter::Get(browser_context_)
       ->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 void LocationManager::OnExtensionLoaded(
     content::BrowserContext* browser_context,
     const Extension* extension) {
   // Grants permission to use geolocation once an extension with "location"
   // permission is loaded.
@@ skipping 20 matching lines @@
 LocationManager::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 // static
 LocationManager* LocationManager::Get(content::BrowserContext* context) {
   return BrowserContextKeyedAPIFactory<LocationManager>::Get(context);
 }
 
 }  // namespace extensions