Remove implicit conversions from scoped_refptr to T* in net/

net/test/cert_test_util_nss.cc

Index: net/test/cert_test_util_nss.cc
diff --git a/net/test/cert_test_util_nss.cc b/net/test/cert_test_util_nss.cc
index a3e06c70654baf5ed1d2a06297cdc8ccc1400711..29be6ae4c5ca3bdb3c7718fa6c7f906564526bb4 100644
--- a/net/test/cert_test_util_nss.cc
+++ b/net/test/cert_test_util_nss.cc
@@ -71,7 +71,7 @@ scoped_refptr<X509Certificate> ImportClientCertAndKeyFromFile(
 
   scoped_refptr<X509Certificate> cert(ImportCertFromFile(dir, cert_filename));
 
-  if (!cert) {
+  if (!cert.get()) {
     LOG(ERROR) << "Failed to parse cert from file " << cert_filename;
     return NULL;
   }