Remove SSLClientAuthHandler's RDH dependency.

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..2398806de0b88e0c6b33651f8e32018a0a3d9553 100644
--- a/content/browser/ssl/ssl_client_auth_handler.h
+++ b/content/browser/ssl/ssl_client_auth_handler.h
@@ -6,6 +6,7 @@
 #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"
@@ -31,9 +32,12 @@ class CONTENT_EXPORT SSLClientAuthHandler
     : public base::RefCountedThreadSafe<
           SSLClientAuthHandler, BrowserThread::DeleteOnIOThread> {
  public:
+  typedef base::Callback<void(net::X509Certificate*)> CertificateCallback;
+
   SSLClientAuthHandler(scoped_ptr<net::ClientCertStore> client_cert_store,
                        net::URLRequest* request,
-                       net::SSLCertRequestInfo* cert_request_info);
+                       net::SSLCertRequestInfo* cert_request_info,
+                       const CertificateCallback& callback);
 
   // Selects a certificate and resumes the URL request with that certificate.
   // Should only be called on the IO thread.
@@ -79,6 +83,9 @@ class CONTENT_EXPORT SSLClientAuthHandler
 
   scoped_ptr<net::ClientCertStore> client_cert_store_;
 
+  // The callback to call when the certificate is selected.
+  CertificateCallback callback_;
+
   DISALLOW_COPY_AND_ASSIGN(SSLClientAuthHandler);
 };