Get ClientCertStore through ResourceContext.

net/ssl/client_cert_store_impl_win.cc

Index: net/ssl/client_cert_store_impl_win.cc
diff --git a/net/ssl/client_cert_store_impl_win.cc b/net/ssl/client_cert_store_impl_win.cc
index 63ea6e4a875c306ec8075c43295925cdbd0e1d50..e22ac03a01f19c7ef5c9a4591767c3e9e8c944c6 100644
--- a/net/ssl/client_cert_store_impl_win.cc
+++ b/net/ssl/client_cert_store_impl_win.cc
@@ -12,6 +12,7 @@
 #include <wincrypt.h>
 #include <security.h>
 
+#include "base/callback.h"
 #include "base/logging.h"
 #include "crypto/scoped_capi_types.h"
 #include "net/cert/x509_util.h"
@@ -143,21 +144,21 @@ bool GetClientCertsImpl(HCERTSTORE cert_store,
 
 }  // namespace
 
-bool ClientCertStoreImpl::GetClientCerts(const SSLCertRequestInfo& request,
-                                         CertificateList* selected_certs) {
+void ClientCertStoreImpl::GetClientCerts(const SSLCertRequestInfo& request,
+                                         CertificateList* selected_certs,
+                                         const base::Closure& callback) {
   // Client certificates of the user are in the "MY" system certificate store.
   HCERTSTORE my_cert_store = CertOpenSystemStore(NULL, L"MY");
   if (!my_cert_store) {
     PLOG(ERROR) << "Could not open the \"MY\" system certificate store: ";
-    return false;
+    callback.Run();
+    return;
   }
 
-  bool rv = GetClientCertsImpl(my_cert_store, request, selected_certs);
-  if (!CertCloseStore(my_cert_store, CERT_CLOSE_STORE_CHECK_FLAG)) {
+  GetClientCertsImpl(my_cert_store, request, selected_certs);
+  if (!CertCloseStore(my_cert_store, CERT_CLOSE_STORE_CHECK_FLAG))
     PLOG(ERROR) << "Could not close the \"MY\" system certificate store: ";
-    return false;
-  }
-  return rv;
+  callback.Run();
 }
 
 bool ClientCertStoreImpl::SelectClientCertsForTesting(