Consolidate manifest handler registration.

chrome/browser/extensions/api/omnibox/omnibox_api.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/api/omnibox/omnibox_api.h"
 
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/string16.h"
@@ skipping 166 matching lines @@
   scoped_ptr<Event> event(new Event(
       events::kOnInputCancelled, make_scoped_ptr(new ListValue())));
   event->restrict_to_profile = profile;
   ExtensionSystem::Get(profile)->event_router()->
       DispatchEventToExtension(extension_id, event.Pass());
 }
 
 OmniboxAPI::OmniboxAPI(Profile* profile)
     : profile_(profile),
       url_service_(TemplateURLServiceFactory::GetForProfile(profile)) {
-  (new OmniboxHandler)->Register();
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
                  content::Source<Profile>(profile));
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
                  content::Source<Profile>(profile));
   if (url_service_) {
     registrar_.Add(this, chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED,
                    content::Source<TemplateURLService>(url_service_));
   }
 
   // Use monochrome icons for Omnibox icons.
@@ skipping 197 matching lines @@
     for (size_t i = 0; i < description_styles.size(); ++i) {
       if (description_styles[i].offset > placeholder)
         description_styles[i].offset += replacement.length() - 2;
     }
   }
 
   match->contents.assign(description);
 }
 
 }  // namespace extensions