1817   Address current_top = top();  in AllocateChunk()  local
1819   if (current_top != kNullAddress && current_top != current_limit) {  in AllocateChunk()
1820     Page::FromAllocationAreaAddress(current_top)  in AllocateChunk()
1821         ->CreateBlackArea(current_top, current_limit);  in AllocateChunk()
1826   Address current_top = top();  in AllocateChunk()  local
1828   if (current_top != kNullAddress && current_top != current_limit) {  in AllocateChunk()
1829     Page::FromAllocationAreaAddress(current_top)  in AllocateChunk()
1830         ->DestroyBlackArea(current_top, current_limit);  in AllocateChunk()
1837   Address current_top = top();  in AllocateChunk()  local
1839   if (current_top == kNullAddress) {  in AllocateChunk()
1845     Page* page = Page::FromAllocationAreaAddress(current_top);  in AllocateChunk()
1848     if (current_top != current_limit) {  in AllocateChunk()
1852           page->AddressToMarkbitIndex(current_top),  in AllocateChunk()
1855           page, -static_cast<int>(current_limit - current_top));  in AllocateChunk()
1859   InlineAllocationStep(current_top, kNullAddress, kNullAddress, 0);  in AllocateChunk()
1861   DCHECK_GE(current_limit, current_top);  in AllocateChunk()
1867         MemoryChunk::FromAddress(current_top));  in AllocateChunk()
1869   Free(current_top, current_limit - current_top,  in AllocateChunk()