197 static bool AlignHead(size_t* start, size_t* length) {  in AlignHead()  argument
198   size_t residual = (*start % BLOCK_SIZE == 0) ? 0 : BLOCK_SIZE - *start % BLOCK_SIZE;  in AlignHead()
206   *start += residual;  in AlignHead()
211 static bool AlignTail(size_t* start, size_t* length) {  in AlignTail()  argument
212   size_t residual = (*start + *length) % BLOCK_SIZE;  in AlignTail()
226 static bool RemoveUsedBlocks(size_t* start, size_t* length, const SortedRangeSet& used_ranges) {  in RemoveUsedBlocks()  argument
227   if (!used_ranges.Overlaps(*start, *length)) {  in RemoveUsedBlocks()
232   LOG(INFO) << "Removing block " << used_ranges.ToString() << " from " << *start << " - "  in RemoveUsedBlocks()
233             << *start + *length - 1;  in RemoveUsedBlocks()
237   if (AlignHead(start, length) && !used_ranges.Overlaps(*start, *length)) {  in RemoveUsedBlocks()
240   if (AlignTail(start, length) && !used_ranges.Overlaps(*start, *length)) {  in RemoveUsedBlocks()
258 ImageChunk::ImageChunk(int type, size_t start, const std::vector<uint8_t>* file_content,  in ImageChunk()  argument
261       start_(start),  in ImageChunk()