Bug 542356: Initialize the NPError outparam passed to NPP_New() so that plugins must set it to NPERR_NO_ERROR (and so as to work around a valgrind UMR false-positive for OOPP). r=joshmoz

modules/plugin/base/src/nsNPAPIPluginInstance.cpp

@@ -1141,7 +1141,7 @@ nsNPAPIPluginInstance::InitializePlugin()
   
   PRInt32       mode;
   const char*   mimetype;
-  NPError       error;
+  NPError       error = NPERR_GENERIC_ERROR;
 
   GetMode(&mode);
   GetMIMEType(&mimetype);