Remove SafePointBarrier::parkOthers

third_party/WebKit/Source/platform/heap/ThreadState.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1154 matching lines @@
     objectPayloadSize += m_arenas[i]->objectPayloadSizeForTesting();
   return objectPayloadSize;
 }
 
 void ThreadState::safePoint(BlinkGC::StackState stackState) {
   ASSERT(checkThread());
   ThreadHeap::reportMemoryUsageForTracing();
 
   runScheduledGC(stackState);
   ASSERT(!m_atSafePoint);
-  m_stackState = stackState;
-  m_atSafePoint = true;
-  m_heap->checkAndPark(this, nullptr);
-  m_atSafePoint = false;
   m_stackState = BlinkGC::HeapPointersOnStack;
 }
 
 #ifdef ADDRESS_SANITIZER
 // When we are running under AddressSanitizer with
 // detect_stack_use_after_return=1 then stack marker obtained from
 // SafePointScope will point into a fake stack.  Detect this case by checking if
 // it falls in between current stack frame and stack start and use an arbitrary
 // high enough value for it.  Don't adjust stack marker in any other case to
 // match behavior of code running without AddressSanitizer.
@@ skipping 449 matching lines @@
     collectGarbage(BlinkGC::NoHeapPointersOnStack, BlinkGC::GCWithSweep,
                    BlinkGC::ForcedGC);
     size_t liveObjects = heap().heapStats().markedObjectSize();
     if (liveObjects == previousLiveObjects)
       break;
     previousLiveObjects = liveObjects;
   }
 }
 
 }  // namespace blink