Add an IPC for PNaCl to check if the session is incognito, before deciding

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

Index: ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.cc
diff --git a/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.cc b/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.cc
index 441345aada0a7a0777efd9f5a69f0209c9ee5cdc..cd6c43a678a3624758aefb2ed2f05683ac748f2a 100644
--- a/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.cc
+++ b/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.cc
@@ -33,7 +33,7 @@ void PnaclTranslateThread::RunTranslate(
     const Manifest* manifest,
     const Manifest* ld_manifest,
     TempFile* obj_file,
-    LocalTempFile* nexe_file,
+    TempFile* nexe_file,
     ErrorInfo* error_info,
     PnaclResources* resources,
     Plugin* plugin) {
@@ -131,7 +131,7 @@ void PnaclTranslateThread::DoTranslate() {
   }
   // Run LLC.
   SrpcParams params;
-  nacl::DescWrapper* llc_out_file = obj_file_->get_wrapper();
+  nacl::DescWrapper* llc_out_file = obj_file_->write_wrapper();
   PluginReverseInterface* llc_reverse =
       llc_subprocess->service_runtime()->rev_interface();
   llc_reverse->AddTempQuotaManagedFile(obj_file_->identifier());
@@ -233,12 +233,11 @@ bool PnaclTranslateThread::RunLdSubprocess(int is_shared_library,
     TranslateFailed("Link process could not reset object file");
     return false;
   }
-  nacl::DescWrapper* ld_in_file = obj_file_->get_wrapper();
+  nacl::DescWrapper* ld_in_file = obj_file_->read_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());
+  ld_reverse->AddTempQuotaManagedFile(nexe_file_->identifier());
   RegisterReverseInterface(ld_reverse);
   if (!ld_subprocess->InvokeSrpcMethod("RunWithDefaultCommandLine",
                                        "hhiss",