Set up the infrastructure for Extension event metrics.

chrome/browser/chromeos/extensions/wallpaper_api.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/chromeos/extensions/wallpaper_api.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/desktop_background/desktop_background_controller.h"
@@ skipping 165 matching lines @@
                                      extension()->name());
     }
     SendResponse(true);
   }
 
   // Inform the native Wallpaper Picker Application that the current wallpaper
   // has been modified by a third party application.
   Profile* profile = Profile::FromBrowserContext(browser_context());
   extensions::EventRouter* event_router = extensions::EventRouter::Get(profile);
   scoped_ptr<base::ListValue> event_args(new base::ListValue());
-  scoped_ptr<extensions::Event> event(
-      new extensions::Event(extensions::api::wallpaper_private::
-                                OnWallpaperChangedBy3rdParty::kEventName,
-                            event_args.Pass()));
+  scoped_ptr<extensions::Event> event(new extensions::Event(
+      extensions::events::UNKNOWN, extensions::api::wallpaper_private::
+                                       OnWallpaperChangedBy3rdParty::kEventName,
+      event_args.Pass()));
   event_router->DispatchEventToExtension(extension_misc::kWallpaperManagerId,
                                          event.Pass());
 }
 
 void WallpaperSetWallpaperFunction::GenerateThumbnail(
     const base::FilePath& thumbnail_path, scoped_ptr<gfx::ImageSkia> image) {
   DCHECK(BrowserThread::GetBlockingPool()->IsRunningSequenceOnCurrentThread(
       sequence_token_));
   if (!base::PathExists(thumbnail_path.DirName()))
     base::CreateDirectory(thumbnail_path.DirName());
@@ skipping 23 matching lines @@
     const std::string& response) {
   if (success) {
     params_->details.data.reset(
         new std::vector<char>(response.begin(), response.end()));
     StartDecode(*params_->details.data);
   } else {
     SetError(response);
     SendResponse(false);
   }
 }