ReadyForSparseIOImpl 397 net/disk_cache/blockfile/entry_impl.cc int EntryImpl::ReadyForSparseIOImpl(const CompletionCallback& callback) { ReadyForSparseIOImpl 707 net/disk_cache/blockfile/entry_impl_v3.cc int EntryImplV3::ReadyForSparseIOImpl(const CompletionCallback& callback) {