Chromium NaCl scripts now uses package_version to extract.

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
index cd44d5c12218000d5d85e677be985647a634437f..f7b1f9e15a55e106df303d3442a95b287a2730fe 100644
--- a/DEPS
+++ b/DEPS
@@ -28,7 +28,7 @@ vars = {
   "chromiumos_git": "https://chromium.googlesource.com/chromiumos",
   "skia_git": "https://skia.googlesource.com",
   "swig_revision": "230490",
-  "nacl_revision": "13106",
+  "nacl_revision": "13115",
   # After changing nacl_revision, run 'glient sync' and check native_client/DEPS
   # to update other nacl_*_revision's.
   "nacl_tools_revision": "13077",  # native_client/DEPS: tools_rev
@@ -588,8 +588,7 @@ hooks = [
     "pattern": ".",
     "action": [
         "python", "src/build/download_nacl_toolchains.py",
-         "--no-arm-trusted",
-         "--keep",
+        "--exclude", "arm_trusted",
     ],
   },
   {