Set up the infrastructure for Extension event metrics.

chrome/browser/extensions/menu_manager.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/menu_manager.h"
 
 #include <algorithm>
 
 #include "base/json/json_writer.h"
 #include "base/logging.h"
@@ skipping 679 matching lines @@
 
   // Note: web_contents are NULL in unit tests :(
   if (web_contents && extensions::TabHelper::FromWebContents(web_contents)) {
     extensions::TabHelper::FromWebContents(web_contents)->
         active_tab_permission_granter()->GrantIfRequested(extension);
   }
 
   {
     // Dispatch to menu item's .onclick handler.
     scoped_ptr<Event> event(
-        new Event(webview_guest ? kOnWebviewContextMenus
-                                : kOnContextMenus,
+        new Event(events::UNKNOWN,
+                  webview_guest ? kOnWebviewContextMenus : kOnContextMenus,
                   scoped_ptr<base::ListValue>(args->DeepCopy())));
     event->restrict_to_browser_context = context;
     event->user_gesture = EventRouter::USER_GESTURE_ENABLED;
     event_router->DispatchEventToExtension(item->extension_id(), event.Pass());
   }
   {
     // Dispatch to .contextMenus.onClicked handler.
-    scoped_ptr<Event> event(
-        new Event(webview_guest ? chrome_web_view::OnClicked::kEventName
-                                : context_menus::OnClicked::kEventName,
-                  args.Pass()));
+    scoped_ptr<Event> event(new Event(
+        events::UNKNOWN, webview_guest ? chrome_web_view::OnClicked::kEventName
+                                       : context_menus::OnClicked::kEventName,
+        args.Pass()));
     event->restrict_to_browser_context = context;
     event->user_gesture = EventRouter::USER_GESTURE_ENABLED;
     if (webview_guest)
       event->filter_info.SetInstanceID(webview_guest->view_instance_id());
     event_router->DispatchEventToExtension(item->extension_id(), event.Pass());
   }
 }
 
 void MenuManager::SanitizeRadioList(const MenuItem::List& item_list) {
   MenuItem::List::const_iterator i = item_list.begin();
@@ skipping 217 matching lines @@
       if (uid < other.uid)
         return true;
       if (uid == other.uid)
         return string_uid < other.string_uid;
     }
   }
   return false;
 }
 
 }  // namespace extensions