Refactor SSLClientAuthHandler and certificate selection

chrome/browser/ssl/ssl_client_auth_handler.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_SSL_SSL_CLIENT_AUTH_HANDLER_H_
 #define CHROME_BROWSER_SSL_SSL_CLIENT_AUTH_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/ref_counted.h"
+#include "chrome/browser/chrome_thread.h"
 #include "net/base/ssl_cert_request_info.h"
 
 namespace net {
 class X509Certificate;
 }
 class URLRequest;
 
 // This class handles the approval and selection of a certificate for SSL client
 // authentication by the user.
 // It is self-owned and deletes itself when the UI reports the user selection or
 // when the URLRequest is cancelled.
 class SSLClientAuthHandler
-    : public base::RefCountedThreadSafe<SSLClientAuthHandler> {
+    : public base::RefCountedThreadSafe<SSLClientAuthHandler,
+                                        ChromeThread::DeleteOnIOThread> {
  public:
   SSLClientAuthHandler(URLRequest* request,
                        net::SSLCertRequestInfo* cert_request_info);
 
   // Asks the user to select a certificate and resumes the URL request with that
   // certificate.
   // Should only be called on the IO thread.
   void SelectCertificate();
 
   // Invoked when the request associated with this handler is cancelled.
   // Should only be called on the IO thread.
   void OnRequestCancelled();
 
   // Calls DoCertificateSelected on the I/O thread.
   // Called on the UI thread after the user has made a selection (which may
   // be long after DoSelectCertificate returns, if the UI is modeless/async.)
   void CertificateSelected(net::X509Certificate* cert);
 
+  // Returns the SSLCertRequestInfo for this handler.
+  net::SSLCertRequestInfo* cert_request_info() { return cert_request_info_; }
+
  private:
-  friend class base::RefCountedThreadSafe<SSLClientAuthHandler>;
+  friend class ChromeThread;
+  friend class DeleteTask<SSLClientAuthHandler>;
 
   ~SSLClientAuthHandler();
 
-  // Asks the user for a cert.
-  // Called on the UI thread.
-  void DoSelectCertificate();
-
   // Notifies that the user has selected a cert.
   // Called on the IO thread.
   void DoCertificateSelected(net::X509Certificate* cert);
 
   // The URLRequest that triggered this client auth.
   URLRequest* request_;
 
   // The certs to choose from.
   scoped_refptr<net::SSLCertRequestInfo> cert_request_info_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLClientAuthHandler);
 };
 
 #endif  // CHROME_BROWSER_SSL_SSL_CLIENT_AUTH_HANDLER_H_