Update to ppapi@163 (bring in additional URLLoader tests)

TBR=brettw
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3014002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@52454 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -158,7 +158,7 @@ deps = {
     Var("libvpx_revision"),
 
   "src/third_party/ppapi":
-    "http://ppapi.googlecode.com/svn/trunk@162",
+    "http://ppapi.googlecode.com/svn/trunk@163",
 
   "src/third_party/libjingle/source":
     "http://libjingle.googlecode.com/svn/branches/nextsnap@" +