Bug 1352572 - Fix misleading/incorrect comment in streamTest; r=bsmedberg

MozReview-Commit-ID: 7c8bLjMuqI2

--HG--
extra : rebase_source : 7bfa1cc78f638bccfaf65c6acac3eab0c01c2881

dom/plugins/test/testplugin/nptest.cpp

@@ -2721,7 +2721,7 @@ convertPointY(NPObject* npobj, const NPVariant* args, uint32_t argCount, NPVaria
 static bool
 streamTest(NPObject* npobj, const NPVariant* args, uint32_t argCount, NPVariant* result)
 {
-  // .streamTest(url, doPost, doNull, writeCallback, notifyCallback, redirectCallback, allowRedirects)
+  // .streamTest(url, doPost, postData, writeCallback, notifyCallback, redirectCallback, allowRedirects)
   if (7 != argCount)
     return false;