roll pdfsqueeze 4:5

Fixes a build warning with the 10.8 SDK

BUG=139138
TEST=none
TBR=dmaclach

Review URL: https://chromiumcodereview.appspot.com/10826042

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@148716 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -421,7 +421,7 @@ deps_os = {
       (Var("googlecode_url") % "google-toolbox-for-mac") + "/trunk@" +
       Var("gtm_revision"),
     "src/third_party/pdfsqueeze":
-      (Var("googlecode_url") % "pdfsqueeze") + "/trunk@4",
+      (Var("googlecode_url") % "pdfsqueeze") + "/trunk@5",
     "src/third_party/lighttpd":
       "/trunk/deps/third_party/lighttpd@33737",