Merge revision 482 changes:

- Mac: Fix the "no autorelease pool in place" error by initializing an NSAutoreleasePool on every thread (issue #502).

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/963@629 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/cef_process_io_thread.h

@@ -25,12 +25,13 @@ class CefProcessIOThread : public CefThread {
   CefProcessIOThread(MessageLoop* message_loop);
   virtual ~CefProcessIOThread();
 
-  virtual void Init();
-  virtual void CleanUp();
-
   scoped_refptr<BrowserRequestContext> request_context()
     { return request_context_; }
 
+ protected:
+  virtual void Init();
+  virtual void CleanUp();
+
  private:
   scoped_refptr<BrowserRequestContext> request_context_;