Bug 1074415 - Build error in nsNPAPIPluginInstance when enabling PR_LOGGING in non-debug builds. r=johns

dom/plugins/base/nsNPAPIPluginInstance.cpp

@@ -558,7 +558,11 @@ nsresult nsNPAPIPluginInstance::SetWindow(NPWindow* window)
 
     NPPAutoPusher nppPusher(&mNPP);
 
+#ifndef PR_LOGGING
     DebugOnly<NPError> error;
+#else
+    NPError error;
+#endif
     NS_TRY_SAFE_CALL_RETURN(error, (*pluginFunctions->setwindow)(&mNPP, (NPWindow*)window), this,
                             NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);