Remove obsolete comment.

content/browser/browser_context.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 "content/public/browser/browser_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <limits>
@@ skipping 221 matching lines @@
 #endif
 }
 
 StoragePartition* BrowserContext::GetStoragePartition(
     BrowserContext* browser_context,
     SiteInstance* site_instance) {
   std::string partition_domain;
   std::string partition_name;
   bool in_memory = false;
 
-  // TODO(ajwong): After GetDefaultStoragePartition() is removed, get rid of
-  // this conditional and require that |site_instance| is non-NULL.
   if (site_instance) {
     GetContentClient()->browser()->GetStoragePartitionConfigForSite(
         browser_context, site_instance->GetSiteURL(), true,
         &partition_domain, &partition_name, &in_memory);
   }
 
   return GetStoragePartitionFromConfig(
       browser_context, partition_domain, partition_name, in_memory);
 }
 
@@ skipping 274 matching lines @@
   if (GetUserData(kDownloadManagerKeyName))
     GetDownloadManager(this)->Shutdown();
 }
 
 void BrowserContext::ShutdownStoragePartitions() {
   if (GetUserData(kStoragePartitionMapKeyName))
     RemoveUserData(kStoragePartitionMapKeyName);
 }
 
 }  // namespace content