Remove unnecessary SafePointScope

third_party/WebKit/Source/platform/WaitableEvent.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/WaitableEvent.h"
 
 #include "base/synchronization/waitable_event.h"
 #include "platform/heap/SafePoint.h"
 #include "platform/heap/ThreadState.h"
 #include "wtf/Optional.h"
@@ skipping 12 matching lines @@
           : base::WaitableEvent::InitialState::NOT_SIGNALED));
 }
 
 WaitableEvent::~WaitableEvent() {}
 
 void WaitableEvent::reset() {
   m_impl->Reset();
 }
 
 void WaitableEvent::wait() {
-  if (ThreadState::current()) {
-    // We only enter a safe point scope if the thread is attached, ex. never
-    // during shutdown.
-    // TODO(esprehn): Why can't SafePointScope do this for us?
-    SafePointScope scope(BlinkGC::HeapPointersOnStack);
-    m_impl->Wait();
-  } else {
-    m_impl->Wait();
-  }
+  m_impl->Wait();
 }
 
 void WaitableEvent::signal() {
   m_impl->Signal();
 }
 
 size_t WaitableEvent::waitMultiple(const WTF::Vector<WaitableEvent*>& events) {
   std::vector<base::WaitableEvent*> baseEvents;
   for (size_t i = 0; i < events.size(); ++i)
     baseEvents.push_back(events[i]->m_impl.get());
   size_t idx =
       base::WaitableEvent::WaitMany(baseEvents.data(), baseEvents.size());
   DCHECK_LT(idx, events.size());
   return idx;
 }
 
 }  // namespace blink