Revert "Remove OwnPtr from Blink."

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 31 matching lines @@
 #include "platform/heap/SafePoint.h"
 #include "platform/heap/Visitor.h"
 #include "platform/web_memory_allocator_dump.h"
 #include "platform/web_process_memory_dump.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebScheduler.h"
 #include "public/platform/WebThread.h"
 #include "public/platform/WebTraceLocation.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/DataLog.h"
-#include "wtf/PtrUtil.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/allocator/Partitions.h"
-#include <memory>
-#include <v8.h>
 
 #if OS(WIN)
 #include <stddef.h>
 #include <windows.h>
 #include <winnt.h>
 #endif
 
 #if defined(MEMORY_SANITIZER)
 #include <sanitizer/msan_interface.h>
 #endif
 
 #if OS(FREEBSD)
 #include <pthread_np.h>
 #endif
 
+#include <v8.h>
+
 namespace blink {
 
 WTF::ThreadSpecific<ThreadState*>* ThreadState::s_threadSpecific = nullptr;
 uintptr_t ThreadState::s_mainThreadStackStart = 0;
 uintptr_t ThreadState::s_mainThreadUnderestimatedStackSize = 0;
 uint8_t ThreadState::s_mainThreadStateStorage[sizeof(ThreadState)];
 
 ThreadState::ThreadState(bool perThreadHeapEnabled)
     : m_thread(currentThread())
-    , m_persistentRegion(wrapUnique(new PersistentRegion()))
+    , m_persistentRegion(adoptPtr(new PersistentRegion()))
 #if OS(WIN) && COMPILER(MSVC)
     , m_threadStackSize(0)
 #endif
     , m_startOfStack(reinterpret_cast<intptr_t*>(StackFrameDepth::getStackStart()))
     , m_endOfStack(reinterpret_cast<intptr_t*>(StackFrameDepth::getStackStart()))
     , m_safePointScopeMarker(nullptr)
     , m_atSafePoint(false)
     , m_interruptors()
     , m_sweepForbidden(false)
     , m_noAllocationCount(0)
@@ skipping 34 matching lines @@
     } else {
         m_heap = &ThreadState::mainThreadState()->heap();
     }
     ASSERT(m_heap);
     m_heap->attach(this);
 
     for (int arenaIndex = 0; arenaIndex < BlinkGC::LargeObjectArenaIndex; arenaIndex++)
         m_arenas[arenaIndex] = new NormalPageArena(this, arenaIndex);
     m_arenas[BlinkGC::LargeObjectArenaIndex] = new LargeObjectArena(this, BlinkGC::LargeObjectArenaIndex);
 
-    m_likelyToBePromptlyFreed = wrapArrayUnique(new int[likelyToBePromptlyFreedArraySize]);
+    m_likelyToBePromptlyFreed = adoptArrayPtr(new int[likelyToBePromptlyFreedArraySize]);
     clearArenaAges();
 
     // There is little use of weak references and collections off the main thread;
     // use a much lower initial block reservation.
     size_t initialBlockSize = isMainThread() ? CallbackStack::kDefaultBlockSize : CallbackStack::kMinimalBlockSize;
     m_threadLocalWeakCallbackStack = new CallbackStack(initialBlockSize);
 }
 
 ThreadState::~ThreadState()
 {
@@ skipping 294 matching lines @@
     ScriptForbiddenIfMainThreadScope scriptForbiddenScope;
 
     // Disallow allocation during weak processing.
     // It would be technically safe to allow allocations, but it is unsafe
     // to mutate an object graph in a way in which a dead object gets
     // resurrected or mutate a HashTable (because HashTable's weak processing
     // assumes that the HashTable hasn't been mutated since the latest marking).
     // Due to the complexity, we just forbid allocations.
     NoAllocationScope noAllocationScope(this);
 
-    std::unique_ptr<Visitor> visitor = Visitor::create(this, BlinkGC::ThreadLocalWeakProcessing);
+    OwnPtr<Visitor> visitor = Visitor::create(this, BlinkGC::ThreadLocalWeakProcessing);
 
     // Perform thread-specific weak processing.
     while (popAndInvokeThreadLocalWeakCallback(visitor.get())) { }
 
     m_threadLocalWeakCallbackStack->decommit();
 
     if (isMainThread()) {
         double timeForThreadLocalWeakProcessing = WTF::currentTimeMS() - startTime;
         DEFINE_STATIC_LOCAL(CustomCountHistogram, timeForWeakHistogram, ("BlinkGC.TimeForThreadLocalWeakProcessing", 1, 10 * 1000, 50));
         timeForWeakHistogram.count(timeForThreadLocalWeakProcessing);
@@ skipping 852 matching lines @@
     ASSERT(slotCount < 1024);
 #endif
 
     ASSERT(!m_safePointStackCopy.size());
     m_safePointStackCopy.resize(slotCount);
     for (size_t i = 0; i < slotCount; ++i) {
         m_safePointStackCopy[i] = from[i];
     }
 }
 
-void ThreadState::addInterruptor(std::unique_ptr<BlinkGCInterruptor> interruptor)
+void ThreadState::addInterruptor(PassOwnPtr<BlinkGCInterruptor> interruptor)
 {
     ASSERT(checkThread());
     SafePointScope scope(BlinkGC::HeapPointersOnStack);
     {
         MutexLocker locker(m_heap->threadAttachMutex());
         m_interruptors.append(std::move(interruptor));
     }
 }
 
 void ThreadState::registerStaticPersistentNode(PersistentNode* node, PersistentClearCallback callback)
@@ skipping 198 matching lines @@
     threadDump->AddScalar("dead_count", "objects", totalDeadCount);
     threadDump->AddScalar("live_size", "bytes", totalLiveSize);
     threadDump->AddScalar("dead_size", "bytes", totalDeadSize);
 
     base::trace_event::MemoryAllocatorDump* heapsDump = BlinkGCMemoryDumpProvider::instance()->createMemoryAllocatorDumpForCurrentGC(heapsDumpName);
     base::trace_event::MemoryAllocatorDump* classesDump = BlinkGCMemoryDumpProvider::instance()->createMemoryAllocatorDumpForCurrentGC(classesDumpName);
     BlinkGCMemoryDumpProvider::instance()->currentProcessMemoryDump()->AddOwnershipEdge(classesDump->guid(), heapsDump->guid());
 }
 
 } // namespace blink