ClientCertStoreChromeOS: support additional non-platform certs.

net/ssl/client_cert_store_chromeos.h

Index: net/ssl/client_cert_store_chromeos.h
diff --git a/net/ssl/client_cert_store_chromeos.h b/net/ssl/client_cert_store_chromeos.h
index 2bc359cd9a5f3a0c251bacf4281bc90d2d52c1ed..c58f7ba3f9043ddfabe4871cf451b117086dce33 100644
--- a/net/ssl/client_cert_store_chromeos.h
+++ b/net/ssl/client_cert_store_chromeos.h
@@ -33,9 +33,11 @@ class NET_EXPORT ClientCertStoreChromeOS : public ClientCertStoreNSS {
         const scoped_refptr<X509Certificate>& cert) const = 0;
   };
 
-  // This ClientCertStore will return only client certs that pass the filter
-  // |cert_filter|.
+  // This ClientCertStore will return client certs from NSS certificate
+  // databases that pass the filter |cert_filter| and unconditionally the certs
+  // from |additional_certs|.
   ClientCertStoreChromeOS(
+      const CertificateList& additional_certs,
       scoped_ptr<CertFilter> cert_filter,
       const PasswordDelegateFactory& password_delegate_factory);
   ~ClientCertStoreChromeOS() override;
@@ -57,6 +59,7 @@ class NET_EXPORT ClientCertStoreChromeOS : public ClientCertStoreNSS {
                              CertificateList* selected_certs,
                              const base::Closure& callback);
 
+  const CertificateList additional_certs_;
   scoped_ptr<CertFilter> cert_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientCertStoreChromeOS);