NaCl cleanup: Remove assignment to g_is_main_thread

ppapi/nacl_irt/irt_ppapi.cc

 // Copyright 2014 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 <unistd.h>
 
 #include "build/build_config.h"
 #include "native_client/src/public/irt_core.h"
 #include "native_client/src/trusted/service_runtime/include/sys/unistd.h"
 #include "native_client/src/untrusted/irt/irt.h"
-#include "native_client/src/untrusted/irt/irt_private.h"
 #include "ppapi/nacl_irt/irt_manifest.h"
 #include "ppapi/nacl_irt/irt_ppapi.h"
 #include "ppapi/nacl_irt/plugin_main.h"
 #include "ppapi/nacl_irt/public/irt_ppapi.h"
 #include "ppapi/native_client/src/untrusted/pnacl_irt_shim/irt_shim_ppapi.h"
 
 static struct PP_StartFunctions g_pp_functions;
 
 int irt_ppapi_start(const struct PP_StartFunctions* funcs) {
-#if !defined(OS_NACL_NONSFI)
-  // Disable NaCl's open_resource() interface on this thread.
-  // TODO(hidehiko): This flag is no longer used because, even in SFI mode,
-  // we switched from SRPC to Chrome IPC for open_resource() implementation.
-  // Remove this flag.
-  g_is_main_thread = 1;
-#endif
-
   g_pp_functions = *funcs;
   return PpapiPluginMain();
 }
 
 int32_t PPP_InitializeModule(PP_Module module_id,
                              PPB_GetInterface get_browser_interface) {
   return g_pp_functions.PPP_InitializeModule(module_id, get_browser_interface);
 }
 
 void PPP_ShutdownModule(void) {
@@ skipping 55 matching lines @@
                         void* table, size_t tablesize) {
   size_t result = nacl_irt_query_list(interface_ident,
                                       table,
                                       tablesize,
                                       irt_interfaces,
                                       sizeof(irt_interfaces));
   if (result != 0)
     return result;
   return nacl_irt_query_core(interface_ident, table, tablesize);
 }