SparseRangeIterator  403 net/disk_cache/simple/simple_synchronous_entry.cc   SparseRangeIterator it = sparse_ranges_.lower_bound(offset);
SparseRangeIterator  481 net/disk_cache/simple/simple_synchronous_entry.cc   SparseRangeIterator it = sparse_ranges_.lower_bound(offset);
SparseRangeIterator  567 net/disk_cache/simple/simple_synchronous_entry.cc   SparseRangeIterator it = sparse_ranges_.lower_bound(offset);