Second patch in making destructors of refcounted objects private.

net/url_request/url_request_http_job.h

Index: net/url_request/url_request_http_job.h
===================================================================
--- net/url_request/url_request_http_job.h	(revision 31079)
+++ net/url_request/url_request_http_job.h	(working copy)
@@ -27,8 +27,6 @@
  public:
   static URLRequestJob* Factory(URLRequest* request, const std::string& scheme);
 
-  virtual ~URLRequestHttpJob();
-
  protected:
   explicit URLRequestHttpJob(URLRequest* request);
 
@@ -116,6 +114,9 @@
   // For recording of stats, we need to remember if this is cached content.
   bool is_cached_content_;
 
+ private:
+  virtual ~URLRequestHttpJob();
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestHttpJob);
 };