Second patch in making destructors of refcounted objects private.

net/url_request/url_request_job.h

Index: net/url_request/url_request_job.h
===================================================================
--- net/url_request/url_request_job.h	(revision 31079)
+++ net/url_request/url_request_job.h	(working copy)
@@ -41,7 +41,6 @@
   static const size_t kSdchPacketHistogramCount = 5;
 
   explicit URLRequestJob(URLRequest* request);
-  virtual ~URLRequestJob();
 
   // Returns the request that owns this job. THIS POINTER MAY BE NULL if the
   // request was destroyed.
@@ -218,6 +217,9 @@
   virtual void RecordPacketStats(StatisticSelector statistic) const;
 
  protected:
+  friend class base::RefCountedThreadSafe<URLRequestJob>;
+  virtual ~URLRequestJob();
+
   // Notifies the job that headers have been received.
   void NotifyHeadersComplete();