Update the DEPS to bring a swig change in.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/5870004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69434 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -7,7 +7,7 @@ vars = {
   "webkit_revision": "74182",
   "skia_revision": "632",
   "chromium_git": "http://git.chromium.org/git",
-  "swig_revision": "40423",
+  "swig_revision": "69281",
   "nacl_revision": "3764",
   "libjingle_revision": "50",
   "libvpx_revision": "65287",