Bug 1293117 (part 6) - Fix a comment and return type in XPCComponents.cpp. r=froydnj.

The comment is wrong. NS_METHOD is the appropriate thing to use here.

--HG--
extra : rebase_source : 68ada96c01f7941d5266298356ba5f493bcda67c

js/xpconnect/src/XPCComponents.cpp

@@ -3503,10 +3503,9 @@ public:
     // having one.
     NS_DECL_ISUPPORTS_INHERITED
     NS_DECL_NSIXPCSCRIPTABLE
-    // The NS_IMETHODIMP isn't really accurate here, but NS_CALLBACK requires
-    // the referent to be declared __stdcall on Windows, and this is the only
-    // macro that does that.
-    static NS_IMETHODIMP Get(nsIXPCScriptable** helper)
+    // This is NS_METHOD because NS_CALLBACK requires the referent to be
+    // declared __stdcall on Windows, and NS_METHOD does that.
+    static NS_METHOD Get(nsIXPCScriptable** helper)
     {
         *helper = &singleton;
         return NS_OK;