Make some of the pnacl_irt_shim data members local.

The structs are internal to the pnacl_shim.c.

BUG=none
R=teravest@chromium.org

Review URL: https://codereview.chromium.org/126343002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243452 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/generators/idl_gen_wrapper.py

@@ -324,9 +324,9 @@ const void *__%(wrapper_prefix)s_PPPGetInterface(const char *name) {
                   iface.struct_name)
         continue
 
-      out.Write('struct %s %s_Wrappers_%s = {\n' % (iface.struct_name,
-                                                    self.wrapper_prefix,
-                                                    iface.struct_name))
+      out.Write('static struct %s %s_Wrappers_%s = {\n' % (iface.struct_name,
+                                                           self.wrapper_prefix,
+                                                           iface.struct_name))
       methods = []
       for member in iface.node.GetListOf('Member'):
         # Skip the method if it's not actually in the release.