Adds the new URLRequest::OnBeforeNetworkStart hook to the

content/browser/loader/certificate_resource_handler.cc

Index: content/browser/loader/certificate_resource_handler.cc
diff --git a/content/browser/loader/certificate_resource_handler.cc b/content/browser/loader/certificate_resource_handler.cc
index b9ae4ee4e5671d7f664cf2c936d3f81f35d7b608..4545f346fad594c10ae9e672e9b61fa706fe8c34 100644
--- a/content/browser/loader/certificate_resource_handler.cc
+++ b/content/browser/loader/certificate_resource_handler.cc
@@ -56,6 +56,12 @@ bool CertificateResourceHandler::OnWillStart(int request_id,
   return true;
 }
 
+bool CertificateResourceHandler::OnBeforeNetworkStart(int request_id,
+                                                      const GURL& url,
+                                                      bool* defer) {
+  return true;
+}
+
 bool CertificateResourceHandler::OnWillRead(int request_id,
                                            scoped_refptr<net::IOBuffer>* buf,
                                            int* buf_size,