TRACE_EVENT_GET_SAMPLING_STATE  336 Source/bindings/v8/V8GCController.cpp         V8PerIsolateData::from(isolate)->setPreviousSamplingState(TRACE_EVENT_GET_SAMPLING_STATE());
TRACE_EVENT_GET_SAMPLING_STATE  353 Source/bindings/v8/V8GCController.cpp         V8PerIsolateData::from(isolate)->setPreviousSamplingState(TRACE_EVENT_GET_SAMPLING_STATE());