Bug 118656 -- clean up in plugin SDK, not part of the build

git-svn-id: svn://10.0.0.236/trunk@132133 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/modules/plugin/tools/sdk/samples/simple/plugin.cpp

@@ -38,13 +38,12 @@
 #include "plugin.h"
 #include "nsIServiceManager.h"
 #include "nsIMemory.h"
+#include "nsISupportsUtils.h" // this is where some useful macros defined
 
 // service manager which will give the access to all public browser services
 // we will use memory service as an illustration
 nsIServiceManager * gServiceManager = NULL;
 
-//static NS_DEFINE_IID(kMemoryCID, NS_MEMORY_CID);
-
 // Unix needs this
 #ifdef XP_UNIX
 #define MIME_TYPES_HANDLED  "application/simple-plugin"
@@ -69,7 +68,7 @@ NPError NS_PluginInitialize()
   
   NPN_GetValue(NULL, NPNVserviceManager, &sm);
 
-  // Mozilla returns nsIServiceManager so we can use it directly, doing QI on
+  // Mozilla returns nsIServiceManager so we can use it directly; doing QI on
   // nsISupports here can still be more appropriate in case something is changed 
   // in the future so we don't need to do casting of any sort.
   if(sm) {