Stop refcounting URLRequestContext.

content/browser/browser_process_sub_thread.cc

 // Copyright (c) 2011 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/browser/browser_process_sub_thread.h"
 
 #if defined(OS_WIN)
 #include <Objbase.h>
 #endif
 
@@ skipping 35 matching lines @@
     base::ThreadRestrictions::DisallowWaiting();
   }
 }
 
 void BrowserProcessSubThread::CleanUp() {
   if (BrowserThread::CurrentlyOn(BrowserThread::IO))
     IOThreadPreCleanUp();
 
   BrowserThreadImpl::CleanUp();
 
-  if (BrowserThread::CurrentlyOn(BrowserThread::IO))
-    IOThreadPostCleanUp();
-
   delete notification_service_;
   notification_service_ = NULL;
 
 #if defined(OS_WIN)
   // Closes the COM library on the current thread. CoInitialize must
   // be balanced by a corresponding call to CoUninitialize.
   CoUninitialize();
 #endif
 }
 
 void BrowserProcessSubThread::IOThreadPreCleanUp() {
   // Kill all things that might be holding onto
   // net::URLRequest/net::URLRequestContexts.
 
   // Destroy all URLRequests started by URLFetchers.
   content::URLFetcher::CancelAll();
 
   IndexedDBKeyUtilityClient::Shutdown();
 
   // If any child processes are still running, terminate them and
   // and delete the BrowserChildProcessHost instances to release whatever
   // IO thread only resources they are referencing.
   BrowserChildProcessHostImpl::TerminateAll();
 }
 
-void BrowserProcessSubThread::IOThreadPostCleanUp() {
-  // net::URLRequest instances must NOT outlive the IO thread.
-  base::debug::LeakTracker<net::URLRequest>::CheckForLeaks();
-}
-
 }  // namespace content