Remove implicit conversions from scoped_refptr to T* in extensions code.

chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc

Index: chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc
diff --git a/chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc b/chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc
index 613a99db303a769b6739c12397fe4150e9c3ed00..f120fc4e17a27f798b28ea533275590c19349d1d 100644
--- a/chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc
+++ b/chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc
@@ -212,7 +212,7 @@ EnterprisePlatformKeysImportCertificateFunction::Run() {
   const std::string& cert_der = params->certificate;
   scoped_refptr<net::X509Certificate> cert_x509 =
       net::X509Certificate::CreateFromBytes(cert_der.data(), cert_der.size());
-  if (!cert_x509)
+  if (!cert_x509.get())
     return RespondNow(Error(kErrorInvalidX509Cert));
 
   chromeos::platform_keys::ImportCertificate(
@@ -250,7 +250,7 @@ EnterprisePlatformKeysRemoveCertificateFunction::Run() {
   const std::string& cert_der = params->certificate;
   scoped_refptr<net::X509Certificate> cert_x509 =
       net::X509Certificate::CreateFromBytes(cert_der.data(), cert_der.size());
-  if (!cert_x509)
+  if (!cert_x509.get())
     return RespondNow(Error(kErrorInvalidX509Cert));
 
   chromeos::platform_keys::RemoveCertificate(