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31 #ifndef PendingGCRunner_h
32 #define PendingGCRunner_h
34 #include "platform/heap/ThreadState.h"
35 #include "public/platform/WebThread.h"
39 class PendingGCRunner : public WebThread::TaskObserver {
41 PendingGCRunner() : m_nesting(0) { }
45 // m_nesting can be 1 if this was unregistered in a task and
46 // didProcessTask was not called.
47 ASSERT(!m_nesting || m_nesting == 1);
50 virtual void willProcessTask()
55 virtual void didProcessTask()
57 // In the production code WebKit::initialize is called from inside the
58 // message loop so we can get didProcessTask() without corresponding
59 // willProcessTask once. This is benign.
63 ThreadState* state = ThreadState::current();
64 state->safePoint(m_nesting ? ThreadState::HeapPointersOnStack : ThreadState::NoHeapPointersOnStack);