41   // The sum of the bytes of one segment of each size.  in ConfigureSegmentPool()
55   // full_size. If max_pool_size is no sum of segment sizes the actual pool  in ConfigureSegmentPool()
58   // TODO(heimbuef): Determine better strategy generating a segment sizes  in ConfigureSegmentPool()
74 Segment* AccountingAllocator::GetSegment(size_t bytes) {  in GetSegment()
75   Segment* result = GetSegmentFromPool(bytes);  in GetSegment()
86 Segment* AccountingAllocator::AllocateSegment(size_t bytes) {  in AllocateSegment()
96   return reinterpret_cast<Segment*>(memory);  in AllocateSegment()
99 void AccountingAllocator::ReturnSegment(Segment* segment) {  in ReturnSegment()  argument
100   segment->ZapContents();  in ReturnSegment()
103     FreeSegment(segment);  in ReturnSegment()
104   } else if (!AddSegmentToPool(segment)) {  in ReturnSegment()
105     FreeSegment(segment);  in ReturnSegment()
109 void AccountingAllocator::FreeSegment(Segment* memory) {  in FreeSegment()
128 Segment* AccountingAllocator::GetSegmentFromPool(size_t requested_size) {  in GetSegmentFromPool()
139   Segment* segment;  in GetSegmentFromPool()  local
143     segment = unused_segments_heads_[power];  in GetSegmentFromPool()
145     if (segment != nullptr) {  in GetSegmentFromPool()
146       unused_segments_heads_[power] = segment->next();  in GetSegmentFromPool()
147       segment->set_next(nullptr);  in GetSegmentFromPool()
151           &current_pool_size_, -static_cast<base::AtomicWord>(segment->size()));  in GetSegmentFromPool()
155   if (segment) {  in GetSegmentFromPool()
156     DCHECK_GE(segment->size(), requested_size);  in GetSegmentFromPool()
158   return segment;  in GetSegmentFromPool()
161 bool AccountingAllocator::AddSegmentToPool(Segment* segment) {  in AddSegmentToPool()  argument
162   size_t size = segment->size();  in AddSegmentToPool()
182     segment->set_next(unused_segments_heads_[power]);  in AddSegmentToPool()
183     unused_segments_heads_[power] = segment;  in AddSegmentToPool()
196     Segment* current = unused_segments_heads_[power];  in ClearPool()
198       Segment* next = current->next();  in ClearPool()