PNaCl: Remove now-unneeded use of nacl::DescWrapper in TempFile

components/nacl/renderer/plugin/pnacl_coordinator.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 "components/nacl/renderer/plugin/pnacl_coordinator.h"
 
 #include <algorithm>
 #include <sstream>
 #include <utility>
 
@@ skipping 252 matching lines @@
   if (handle == PP_kInvalidFileHandle) {
     ReportNonPpapiError(
         PP_NACL_ERROR_PNACL_CREATE_TEMP,
         std::string(
             "PnaclCoordinator: Got bad temp file handle from GetNexeFd"));
     BitcodeStreamDidFinish(PP_ERROR_FAILED);
     return;
   }
   temp_nexe_file_.reset(new TempFile(plugin_, handle));
   // Open it for reading as the cached nexe file.
-  NexeReadDidOpen(temp_nexe_file_->Open(false));
+  NexeReadDidOpen(temp_nexe_file_->CheckValidity());
 }
 
 void PnaclCoordinator::BitcodeStreamCacheMiss(int64_t expected_pexe_size,
                                               PP_FileHandle nexe_handle) {
   // IMPORTANT: Make sure that PnaclResources::StartLoad() is only
   // called after you receive a response to a request for a .pexe file.
   //
   // The component updater's resource throttles + OnDemand update/install
   // should block the URL request until the compiler is present. Now we
   // can load the resources (e.g. llc and ld nexes).
@@ skipping 17 matching lines @@
                       "information."));
     return;
   }
 
   expected_pexe_size_ = expected_pexe_size;
 
   for (int i = 0; i < split_module_count_; i++) {
     PP_FileHandle obj_handle =
         plugin_->nacl_interface()->CreateTemporaryFile(plugin_->pp_instance());
     nacl::scoped_ptr<TempFile> temp_file(new TempFile(plugin_, obj_handle));
-    int32_t pp_error = temp_file->Open(true);
+    int32_t pp_error = temp_file->CheckValidity();
     if (pp_error != PP_OK) {
       ReportPpapiError(PP_NACL_ERROR_PNACL_CREATE_TEMP,
                        pp_error,
                        "Failed to open scratch object file.");
       return;
     } else {
       obj_files_.push_back(temp_file.release());
     }
   }
   invalid_desc_wrapper_.reset(plugin_->wrapper_factory()->MakeInvalid());
 
   temp_nexe_file_.reset(new TempFile(plugin_, nexe_handle));
   // Open the nexe file for connecting ld and sel_ldr.
   // Start translation when done with this last step of setup!
-  int32_t pp_error = temp_nexe_file_->Open(true);
+  int32_t pp_error = temp_nexe_file_->CheckValidity();
   if (pp_error != PP_OK) {
     ReportNonPpapiError(
         PP_NACL_ERROR_PNACL_CREATE_TEMP,
         std::string(
             "PnaclCoordinator: Got bad temp file handle from writing nexe"));
     return;
   }
   LoadCompiler();
 }
 
@@ skipping 148 matching lines @@
         "PnaclCoordinator: Linker process could not be created.");
     return;
   }
   GetNaClInterface()->LogTranslateTime(
       "NaCl.Perf.PNaClLoadTime.LoadLinker",
       NaClGetTimeOfDayMicroseconds() - ld_load_start_time);
   translate_thread_->RunLink();
 }
 
 }  // namespace plugin