void Shell::Initialize() {
Shell::counter_map_ = new CounterMap();
// Set up counters
- if (i::FLAG_map_counters != NULL)
+ if (i::StrLength(i::FLAG_map_counters) != 0)
MapCounters(i::FLAG_map_counters);
if (i::FLAG_dump_counters) {
V8::SetCounterFunction(LookupCounter);
"debugger agent in another process")
DEFINE_bool(debugger_agent, false, "Enable debugger agent")
DEFINE_int(debugger_port, 5858, "Port to use for remote debugging")
-DEFINE_string(map_counters, NULL, "Map counters to a file")
+DEFINE_string(map_counters, "", "Map counters to a file")
DEFINE_args(js_arguments, JSArguments(),
"Pass all remaining arguments to the script. Alias for \"--\".")