Set up the infrastructure for Extension event metrics.

chrome/browser/extensions/api/tabs/tabs_event_router.cc

 // Copyright 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/tabs/tabs_event_router.h"
 
 #include "base/json/json_writer.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
@@ skipping 183 matching lines @@
   event_args->Append(tab_value);
   tab_value->SetBoolean(tabs_constants::kSelectedKey, active);
   return true;
 }
 
 void TabsEventRouter::TabCreatedAt(WebContents* contents,
                                    int index,
                                    bool active) {
   Profile* profile = Profile::FromBrowserContext(contents->GetBrowserContext());
   scoped_ptr<base::ListValue> args(new base::ListValue);
-  scoped_ptr<Event> event(new Event(tabs::OnCreated::kEventName, args.Pass()));
+  scoped_ptr<Event> event(
+      new Event(events::UNKNOWN, tabs::OnCreated::kEventName, args.Pass()));
   event->restrict_to_browser_context = profile;
   event->user_gesture = EventRouter::USER_GESTURE_NOT_ENABLED;
   event->will_dispatch_callback =
       base::Bind(&WillDispatchTabCreatedEvent, contents, active);
   EventRouter::Get(profile)->BroadcastEvent(event.Pass());
 
   RegisterForTabNotifications(contents);
 }
 
 void TabsEventRouter::TabInsertedAt(WebContents* contents,
@@ skipping 208 matching lines @@
 
 void TabsEventRouter::DispatchEvent(
     Profile* profile,
     const std::string& event_name,
     scoped_ptr<base::ListValue> args,
     EventRouter::UserGestureState user_gesture) {
   EventRouter* event_router = EventRouter::Get(profile);
   if (!profile_->IsSameProfile(profile) || !event_router)
     return;
 
-  scoped_ptr<Event> event(new Event(event_name, args.Pass()));
+  scoped_ptr<Event> event(new Event(events::UNKNOWN, event_name, args.Pass()));
   event->restrict_to_browser_context = profile;
   event->user_gesture = user_gesture;
   event_router->BroadcastEvent(event.Pass());
 }
 
 void TabsEventRouter::DispatchSimpleBrowserEvent(
     Profile* profile, const int window_id, const std::string& event_name) {
   if (!profile_->IsSameProfile(profile))
     return;
 
@@ skipping 20 matching lines @@
   args_base->AppendInteger(ExtensionTabUtil::GetTabId(contents));
 
   // Second arg: An object containing the changes to the tab state.  Filled in
   // by WillDispatchTabUpdatedEvent as a copy of changed_properties, if the
   // extension has the tabs permission.
 
   // Third arg: An object containing the state of the tab. Filled in by
   // WillDispatchTabUpdatedEvent.
   Profile* profile = Profile::FromBrowserContext(contents->GetBrowserContext());
 
-  scoped_ptr<Event> event(
-      new Event(tabs::OnUpdated::kEventName, args_base.Pass()));
+  scoped_ptr<Event> event(new Event(
+      events::UNKNOWN, tabs::OnUpdated::kEventName, args_base.Pass()));
   event->restrict_to_browser_context = profile;
   event->user_gesture = EventRouter::USER_GESTURE_NOT_ENABLED;
   event->will_dispatch_callback =
       base::Bind(&WillDispatchTabUpdatedEvent,
                  contents,
                  changed_properties.get());
   EventRouter::Get(profile)->BroadcastEvent(event.Pass());
 }
 
 TabsEventRouter::TabEntry* TabsEventRouter::GetTabEntry(WebContents* contents) {
@@ skipping 104 matching lines @@
 void TabsEventRouter::OnFaviconUpdated(favicon::FaviconDriver* favicon_driver,
                                        bool icon_url_changed) {
   if (icon_url_changed) {
     favicon::ContentFaviconDriver* content_favicon_driver =
         static_cast<favicon::ContentFaviconDriver*>(favicon_driver);
     FaviconUrlUpdated(content_favicon_driver->web_contents());
   }
 }
 
 }  // namespace extensions