--- a/dom/plugins/base/nsNPAPIPlugin.h
+++ b/dom/plugins/base/nsNPAPIPlugin.h
@@ -9,21 +9,24 @@
 #include "prlink.h"
 #include "npfunctions.h"
 #include "nsPluginHost.h"
 
 #include "mozilla/dom/ScriptSettings.h"
 #include "mozilla/PluginLibrary.h"
 #include "mozilla/RefCounted.h"
 
+// clang-format off
+// See bug 1431030
 #if defined(XP_WIN)
 #define NS_NPAPIPLUGIN_CALLBACK(_type, _name) _type (__stdcall * _name)
 #else
 #define NS_NPAPIPLUGIN_CALLBACK(_type, _name) _type (* _name)
 #endif
+// clang-format on
 
 typedef NS_NPAPIPLUGIN_CALLBACK(NPError, NP_GETENTRYPOINTS) (NPPluginFuncs* pCallbacks);
 typedef NS_NPAPIPLUGIN_CALLBACK(NPError, NP_PLUGININIT) (const NPNetscapeFuncs* pCallbacks);
 typedef NS_NPAPIPLUGIN_CALLBACK(NPError, NP_PLUGINUNIXINIT) (const NPNetscapeFuncs* pCallbacks, NPPluginFuncs* fCallbacks);
 typedef NS_NPAPIPLUGIN_CALLBACK(NPError, NP_PLUGINSHUTDOWN) ();
 
 // nsNPAPIPlugin is held alive both by active nsPluginTag instances and
 // by active nsNPAPIPluginInstance.