Revert of Revert of "Remove SSLClientAuthHandler's RDH dependency." (https://codereview.chromium.org/59687300…

content/browser/ssl/ssl_client_auth_handler.h

Index: content/browser/ssl/ssl_client_auth_handler.h
diff --git a/content/browser/ssl/ssl_client_auth_handler.h b/content/browser/ssl/ssl_client_auth_handler.h
index b848d54d7ffff4d31544f114cba1d3f2b517c142..f95e65d71bbfb35faacad9d33bc3d19784988af2 100644
--- a/content/browser/ssl/ssl_client_auth_handler.h
+++ b/content/browser/ssl/ssl_client_auth_handler.h
@@ -6,78 +6,56 @@
 #define CONTENT_BROWSER_SSL_SSL_CLIENT_AUTH_HANDLER_H_
 
 #include "base/basictypes.h"
+#include "base/callback.h"
 #include "base/memory/ref_counted.h"
-#include "base/sequenced_task_runner_helpers.h"
-#include "content/common/content_export.h"
+#include "base/memory/weak_ptr.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/ssl/ssl_cert_request_info.h"
 
 namespace net {
 class ClientCertStore;
-class HttpNetworkSession;
 class URLRequest;
 class X509Certificate;
 }  // namespace net
 
 namespace content {
 
-class ResourceContext;
+// This class handles the approval and selection of a certificate for SSL client
+// authentication by the user. Should only be used on the IO thread. If the
+// SSLClientAuthHandler is destroyed before the certificate is selected, the
+// selection is canceled and the callback never called.
+class SSLClientAuthHandler {
+ public:
+  typedef base::Callback<void(net::X509Certificate*)> CertificateCallback;
 
-// 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 net::URLRequest is cancelled.
-class CONTENT_EXPORT SSLClientAuthHandler
-    : public base::RefCountedThreadSafe<
-          SSLClientAuthHandler, BrowserThread::DeleteOnIOThread> {
- public:
   SSLClientAuthHandler(scoped_ptr<net::ClientCertStore> client_cert_store,
                        net::URLRequest* request,
-                       net::SSLCertRequestInfo* cert_request_info);
+                       net::SSLCertRequestInfo* cert_request_info,
+                       const CertificateCallback& callback);
+  ~SSLClientAuthHandler();
 
   // Selects 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);
-
- protected:
-  virtual ~SSLClientAuthHandler();
-
  private:
-  friend class base::RefCountedThreadSafe<
-      SSLClientAuthHandler, BrowserThread::DeleteOnIOThread>;
-  friend class BrowserThread;
-  friend class base::DeleteHelper<SSLClientAuthHandler>;
-
   // Called when ClientCertStore is done retrieving the cert list.
   void DidGetClientCerts();
 
-  // Notifies that the user has selected a cert.
-  // Called on the IO thread.
-  void DoCertificateSelected(net::X509Certificate* cert);
-
-  // Selects a client certificate on the UI thread.
-  void DoSelectCertificate(int render_process_host_id,
-                           int render_frame_host_id);
+  // Called when the user has selected a cert.
+  void CertificateSelected(net::X509Certificate* cert);
 
   // The net::URLRequest that triggered this client auth.
   net::URLRequest* request_;
-
-  // The HttpNetworkSession |request_| is associated with.
-  const net::HttpNetworkSession* http_network_session_;
 
   // The certs to choose from.
   scoped_refptr<net::SSLCertRequestInfo> cert_request_info_;
 
   scoped_ptr<net::ClientCertStore> client_cert_store_;
+
+  // The callback to call when the certificate is selected.
+  CertificateCallback callback_;
+
+  base::WeakPtrFactory<SSLClientAuthHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLClientAuthHandler);
 };