Dumping NaCl deps.

This DEPS roll pulls in a new script for downloading NaCl toolchains.

TRB= bradnelson@chromium.org
Review URL: http://codereview.chromium.org/8742033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112950 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -8,7 +8,7 @@ vars = {
   "webkit_revision": "101876",
   "chromium_git": "http://git.chromium.org/git",
   "swig_revision": "69281",
-  "nacl_revision": "7328",
+  "nacl_revision": "7354",
   # After changing nacl_revision, run 'glient sync' and check native_client/DEPS
   # to update other nacl_*_revision's.
   "nacl_tools_revision": "7139",  # native_client/DEPS: tools_rev