Add an interface for nacl to create delete-on-close temp files,

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

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "native_client/src/trusted/plugin/pnacl_translate_thread.h"
 
 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
 #include "native_client/src/trusted/plugin/plugin.h"
 #include "native_client/src/trusted/plugin/pnacl_resources.h"
 #include "native_client/src/trusted/plugin/srpc_params.h"
+#include "native_client/src/trusted/plugin/temporary_file.h"
 #include "native_client/src/trusted/plugin/utility.h"
 
 namespace plugin {
 
 PnaclTranslateThread::PnaclTranslateThread() : subprocesses_should_die_(false),
                                                manifest_(NULL),
                                                ld_manifest_(NULL),
                                                obj_file_(NULL),
                                                nexe_file_(NULL),
                                                coordinator_error_info_(NULL),
@@ skipping 32 matching lines @@
   ErrorInfo error_info;
   nacl::scoped_ptr<NaClSubprocess> ld_subprocess(
       StartSubprocess(PnaclUrls::GetLdUrl(), ld_manifest_, &error_info));
   if (ld_subprocess == NULL) {
     TranslateFailed("Link process could not be created: " +
                     error_info.message());
     return false;
   }
   // Run LD.
   SrpcParams params;
-  nacl::DescWrapper* ld_in_file = obj_file_->read_wrapper();
+
+  // Reset object file for reading first.
+  if (!obj_file_->Reset()) {
+    TranslateFailed("Link process could not reset object file");
+    return false;
+  }
+  nacl::DescWrapper* ld_in_file = obj_file_->get_wrapper();
   nacl::DescWrapper* ld_out_file = nexe_file_->write_wrapper();
   PluginReverseInterface* ld_reverse =
       ld_subprocess->service_runtime()->rev_interface();
   ld_reverse->AddQuotaManagedFile(nexe_file_->identifier(),
                                   nexe_file_->write_file_io());
   if (!ld_subprocess->InvokeSrpcMethod("RunWithDefaultCommandLine",
                                        "hhiss",
                                        &params,
                                        ld_in_file->desc(),
                                        ld_out_file->desc(),
@@ skipping 44 matching lines @@
                  translate_thread_.get()));
   if (translate_thread_ != NULL) {
     SetSubprocessesShouldDie();
     NaClThreadJoin(translate_thread_.get());
     PLUGIN_PRINTF(("~PnaclTranslateThread joined\n"));
   }
   NaClMutexDtor(&subprocess_mu_);
 }
 
 } // namespace plugin