NaCl: enable meta-based validation for shared libraries.

ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc

Index: ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
diff --git a/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc b/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
index 836b0861e1a11543e1464418c45f64c97640800f..a732472c8b5511cdc14ab97aec6c606468b86902 100644
--- a/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
+++ b/ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc
@@ -263,8 +263,8 @@ int32_t PnaclCoordinator::GetLoadedFileDesc(int32_t pp_error,
                  NACL_PRId32", url=%s, component=%s)\n", pp_error,
                  url.c_str(), component.c_str()));
   ErrorInfo error_info;
-  int32_t file_desc_ok_to_close = plugin_->GetPOSIXFileDesc(url);
-  if (pp_error != PP_OK || file_desc_ok_to_close == NACL_NO_FILE_DESC) {
+  struct NaClFileInfo info = plugin_->GetFileInfo(url);
+  if (pp_error != PP_OK || info.desc == NACL_NO_FILE_DESC) {
     if (pp_error == PP_ERROR_ABORTED) {
       plugin_->ReportLoadAbort();
     } else {
@@ -274,7 +274,7 @@ int32_t PnaclCoordinator::GetLoadedFileDesc(int32_t pp_error,
     }
     return NACL_NO_FILE_DESC;
   }
-  return file_desc_ok_to_close;
+  return info.desc;
 }
 
 PnaclCoordinator::PnaclCoordinator(