Add the PPAPI X509 Certificate interface and implementation.

ppapi/proxy/resource_creation_proxy.cc

Index: ppapi/proxy/resource_creation_proxy.cc
diff --git a/ppapi/proxy/resource_creation_proxy.cc b/ppapi/proxy/resource_creation_proxy.cc
index 601d314870f50843a29e1a483ae129f00ed49716..3cad90078f3946d766741a219d7e0c9914971681 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -32,6 +32,7 @@
 #include "ppapi/proxy/ppb_url_loader_proxy.h"
 #include "ppapi/proxy/ppb_video_capture_proxy.h"
 #include "ppapi/proxy/ppb_video_decoder_proxy.h"
+#include "ppapi/proxy/ppb_x509_certificate_private_proxy.h"
 #include "ppapi/shared_impl/api_id.h"
 #include "ppapi/shared_impl/function_group_base.h"
 #include "ppapi/shared_impl/host_resource.h"
@@ -364,6 +365,14 @@ PP_Resource ResourceCreationProxy::CreateWheelInputEvent(
                                     instance, data))->GetReference();
 }
 
+#if !defined(OS_NACL)
+PP_Resource ResourceCreationProxy::CreateX509CertificatePrivate(
+    PP_Instance instance) {
+  return PPB_X509Certificate_Private_Proxy::CreateProxyResource(instance);
+}
+#endif
+
+
 bool ResourceCreationProxy::Send(IPC::Message* msg) {
   return dispatcher()->Send(msg);
 }