Fix remaining incompatibilities between scoped_ptr and unique_ptr.

chrome/browser/certificate_manager_model.cc

Index: chrome/browser/certificate_manager_model.cc
diff --git a/chrome/browser/certificate_manager_model.cc b/chrome/browser/certificate_manager_model.cc
index b38b2987fb056908dfd6af2138f677a2b3e1b9f5..77f22c006601ddf20259491a553ba15801d10fa1 100644
--- a/chrome/browser/certificate_manager_model.cc
+++ b/chrome/browser/certificate_manager_model.cc
@@ -237,7 +237,7 @@ void CertificateManagerModel::DidGetCertDBOnIOThread(
     net::NSSCertDatabase* cert_db) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
-  bool is_user_db_available = cert_db->GetPublicSlot();
+  bool is_user_db_available = !!cert_db->GetPublicSlot();
   bool is_tpm_available = false;
 #if defined(OS_CHROMEOS)
   is_tpm_available = crypto::IsTPMTokenEnabledForNSS();