947     DCHECK_NULL(profiler_);  in SetProfiler()
948     profiler_ = profiler;  in SetProfiler()
954     profiler_ = nullptr;  in ClearProfiler()
960     if (!profiler_) return;  in SampleStack()
969     profiler_->Insert(&sample);  in SampleStack()
973   Profiler* profiler_ = nullptr;  member in v8::internal::Ticker
2044     profiler_ = std::make_unique<Profiler>(isolate);  in SetUp()
2045     profiler_->Engage();  in SetUp()
2085   if (profiler_ != nullptr) {  in StopProfilerThread()
2086     profiler_->Disengage();  in StopProfilerThread()
2087     profiler_.reset();  in StopProfilerThread()