Media Galleries Maintainence: Eliminate some todos

chrome/browser/extensions/api/media_galleries/media_galleries_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.
 
 // Implements the Chrome Extensions Media Galleries API.
 
 #include "chrome/browser/extensions/api/media_galleries/media_galleries_api.h"
 
 #include <stddef.h>
 #include <set>
@@ skipping 380 matching lines @@
                            MediaGalleries::OnScanProgress::Create(details));
 }
 
 void MediaGalleriesEventRouter::DispatchEventToExtension(
     const std::string& extension_id,
     events::HistogramValue histogram_value,
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
-  // TODO(tommycli): Remove these CHECKs after fixing https://crbug.com/467627.
-  CHECK(profile_);
   EventRouter* router = EventRouter::Get(profile_);
-  CHECK(router);
-
   if (!router->ExtensionHasEventListener(extension_id, event_name))
     return;
 
   scoped_ptr<extensions::Event> event(new extensions::Event(
       histogram_value, event_name, std::move(event_args)));
   router->DispatchEventToExtension(extension_id, std::move(event));
 }
 
 void MediaGalleriesEventRouter::OnGalleryChanged(
     const std::string& extension_id, MediaGalleryPrefId gallery_id) {
@@ skipping 839 matching lines @@
       &MediaGalleriesRemoveAllGalleryWatchFunction::OnPreferencesInit, this));
   return true;
 }
 
 void MediaGalleriesRemoveAllGalleryWatchFunction::OnPreferencesInit() {
   gallery_watch_manager()->RemoveAllWatches(GetProfile(), extension_id());
   SendResponse(true);
 }
 
 }  // namespace extensions