| Index: src/heap/spaces-inl.h
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| diff --git a/src/heap/spaces-inl.h b/src/heap/spaces-inl.h
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| index 7ccfcd648fe26beab983f88601adeeec8dacf199..f5e3bde1a493ff2a02b3bca0b537c88bc884ff79 100644
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| --- a/src/heap/spaces-inl.h
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| +++ b/src/heap/spaces-inl.h
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| @@ -270,7 +270,6 @@ template <Page::InitializationMode mode>
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|  Page* Page::Initialize(Heap* heap, MemoryChunk* chunk, Executability executable,
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|                         PagedSpace* owner) {
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|    Page* page = reinterpret_cast<Page*>(chunk);
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| -  page->mutex_ = new base::Mutex();
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|    DCHECK(page->area_size() <= kAllocatableMemory);
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|    DCHECK(chunk->owner() == owner);
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|  
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| 
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