backout of shavers checkin as it breaks windows build and dbradley thinks that Quit took a parameter that was to be the return value of XPCShell?

js/src/xpconnect/shell/xpcshell.cpp

@@ -352,17 +352,6 @@ Clear(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
     return JS_TRUE;
 }
 
-JS_STATIC_DLL_CALLBACK(JSBool)
-SetExitCode(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
-            jsval *rval)
-{
-    if (argc == 0) {
-        gExitCode = 0;
-        return PR_TRUE;
-    }
-    return JS_ValueToECMAInt32(cx, argv[0], &gExitCode);
-}
-
 static JSFunctionSpec glob_functions[] = {
     {"print",           Print,          0},
     {"load",            Load,           1},
@@ -373,7 +362,6 @@ static JSFunctionSpec glob_functions[] = {
     {"dump",            Dump,           1},
     {"gc",              GC,             0},
     {"clear",           Clear,          1},
-    {"setExitCode",     SetExitCode,    1},
     {0}
 };