Implement open_resource in non-SFI mode.

components/nacl/loader/nonsfi/irt_resource_open.cc

Index: components/nacl/loader/nonsfi/irt_resource_open.cc
diff --git a/components/nacl/loader/nonsfi/irt_exception_handling.h b/components/nacl/loader/nonsfi/irt_resource_open.cc
similarity index 52%
copy from components/nacl/loader/nonsfi/irt_exception_handling.h
copy to components/nacl/loader/nonsfi/irt_resource_open.cc
index b6aafbd1d9ba4b71fd8ee83312128de61d4f39f7..cf193c13ba14c82afa410f2dd37ba4161ead9c35 100644
--- a/components/nacl/loader/nonsfi/irt_exception_handling.h
+++ b/components/nacl/loader/nonsfi/irt_resource_open.cc
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_NACL_LOADER_NONSFI_IRT_EXCEPTION_HANDLING_H_
-#define COMPONENTS_NACL_LOADER_NONSFI_IRT_EXCEPTION_HANDLING_H_
+#include "components/nacl/loader/nonsfi/irt_interfaces.h"
+#include "ppapi/nacl_irt/irt_manifest.h"
 
 namespace nacl {
 namespace nonsfi {
 
-void InitializeSignalHandler();
+const nacl_irt_resource_open kIrtResourceOpen = {
+  ppapi::IrtOpenResource,
+};
 
 }  // namespace nonsfi
 }  // namespace nacl
-
-#endif  // COMPONENTS_NACL_LOADER_NONSFI_IRT_EXCEPTION_HANDLING_H_