Remove ThreadState::collectGarbageForTerminatingThread

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 1678 matching lines @@
     heap().m_lastGCReason = reason;
 
     ThreadHeap::reportMemoryUsageHistogram();
     WTF::Partitions::reportMemoryUsageHistogram();
   }
 
   heap().postGC(gcType);
   heap().decommitCallbackStacks();
 }
 
-void ThreadState::collectGarbageForTerminatingThread() {
-  // A thread-specific termination GC must not allow other global GCs to go
-  // ahead while it is running, hence the termination GC does not enter a
-  // safepoint. VisitorScope will not enter also a safepoint scope for
-  // ThreadTerminationGC.
-  GCForbiddenScope gcForbiddenScope(this);
-
-  {
-    std::unique_ptr<Visitor> visitor =
-        Visitor::create(this, VisitorMarkingMode::ThreadLocalMarking);
-
-    NoAllocationScope noAllocationScope(this);
-
-    heap().commitCallbackStacks();
-    preGC();
-
-    // 1. Trace the thread local persistent roots. For thread local GCs we
-    // don't trace the stack (ie. no conservative scanning) since this is
-    // only called during thread shutdown where there should be no objects
-    // on the stack.
-    // We also assume that orphaned pages have no objects reachable from
-    // persistent handles on other threads or CrossThreadPersistents.  The
-    // only cases where this could happen is if a subsequent conservative
-    // global GC finds a "pointer" on the stack or due to a programming
-    // error where an object has a dangling cross-thread pointer to an
-    // object on this heap.
-    visitPersistents(visitor.get());
-
-    // 2. Trace objects reachable from the thread's persistent roots
-    // including ephemerons.
-    heap().processMarkingStack(visitor.get());
-
-    heap().postMarkingProcessing(visitor.get());
-    heap().globalWeakProcessing(visitor.get());
-  }
-
-  postGC(BlinkGC::GCWithSweep);
-  heap().decommitCallbackStacks();
-}
-
 void ThreadState::collectAllGarbage() {
   // We need to run multiple GCs to collect a chain of persistent handles.
   size_t previousLiveObjects = 0;
   for (int i = 0; i < 5; ++i) {
     collectGarbage(BlinkGC::NoHeapPointersOnStack, BlinkGC::GCWithSweep,
                    BlinkGC::ForcedGC);
     size_t liveObjects = heap().heapStats().markedObjectSize();
     if (liveObjects == previousLiveObjects)
       break;
     previousLiveObjects = liveObjects;
   }
 }
 
 }  // namespace blink