Enable NaCl on the Linux GN x64 release build (only).

ppapi/native_client/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/features.gni")
 
 if (enable_nacl && enable_nacl_untrusted) {
   group("ppapi_lib") {
     deps = [
       "//native_client/src/untrusted/pthread",
@@ skipping 11 matching lines @@
       "//gpu/ipc",
       "//ipc",
       "//media:shared_memory_support",
       "//mojo/nacl:irt_mojo_sources",
       "//native_client/src/untrusted/irt:irt_core_lib",
       "//native_client/src/shared/srpc",
       "//native_client/src/shared/platform",
       "//native_client/src/tools/tls_edit($host_toolchain)",
       "//native_client/src/untrusted/nacl:imc_syscalls",
       "//native_client/src/shared/gio",
-      "//ppai/native_client/src/untrusted/pnacl_irt_shim:irt",
+      "//ppapi/native_client/src/untrusted/pnacl_irt_shim:irt",
       "//ppapi/proxy",
       "//ppapi/proxy:ipc",
       "//ppapi/shared_impl",
     ]
   }
 }