Stop refcounting URLRequestContext.

content/browser/browser_process_sub_thread.cc

Index: content/browser/browser_process_sub_thread.cc
diff --git a/content/browser/browser_process_sub_thread.cc b/content/browser/browser_process_sub_thread.cc
index c521af2deac40897b5b24757d39633439f778e61..5aac8e9ae93527ff868ed073eb58031332d400f6 100644
--- a/content/browser/browser_process_sub_thread.cc
+++ b/content/browser/browser_process_sub_thread.cc
@@ -53,9 +53,6 @@ void BrowserProcessSubThread::CleanUp() {
 
   BrowserThreadImpl::CleanUp();
 
-  if (BrowserThread::CurrentlyOn(BrowserThread::IO))
-    IOThreadPostCleanUp();
-
   delete notification_service_;
   notification_service_ = NULL;
 
@@ -81,9 +78,4 @@ void BrowserProcessSubThread::IOThreadPreCleanUp() {
   BrowserChildProcessHostImpl::TerminateAll();
 }
 
-void BrowserProcessSubThread::IOThreadPostCleanUp() {
-  // net::URLRequest instances must NOT outlive the IO thread.
-  base::debug::LeakTracker<net::URLRequest>::CheckForLeaks();
-}
-
 }  // namespace content