| Index: ui/file_manager/zip_archiver/cpp/volume_reader.h | 
| diff --git a/ui/file_manager/zip_archiver/cpp/volume_reader.h b/ui/file_manager/zip_archiver/cpp/volume_reader.h | 
| index 269caf1b0112fb18e62e1eb29ae3b69e7b520fa3..a30840091415edf2385494d0776574ed1176aad1 100644 | 
| --- a/ui/file_manager/zip_archiver/cpp/volume_reader.h | 
| +++ b/ui/file_manager/zip_archiver/cpp/volume_reader.h | 
| @@ -7,8 +7,6 @@ | 
|  | 
| #include <string> | 
|  | 
| -#include "archive.h" | 
| - | 
| // Defines a reader for archive volumes. This class is used by libarchive | 
| // for custom reads: https://github.com/libarchive/libarchive/wiki/Examples | 
| class VolumeReader { | 
| @@ -23,25 +21,22 @@ class VolumeReader { | 
| // The operation must be synchronous (libarchive requirement), so it | 
| // should NOT be done on the main thread. bytes_to_read should be > 0. | 
| // | 
| -  // Returns the actual number of read bytes or ARCHIVE_FATAL in case of | 
| -  // failure. | 
| +  // Returns the actual number of read bytes or -1 in case of failure. | 
| virtual int64_t Read(int64_t bytes_to_read, | 
| const void** destination_buffer) = 0; | 
|  | 
| -  // Tries to skip bytes_to_skip number of bytes. Returns the actual number of | 
| -  // skipped bytes or 0 if none were skipped. In case of failure | 
| -  // VolumeReader::Skip returns 0 bytes and VolumeReader::Read can be used | 
| -  // to skip those bytes by discarding them. | 
| -  virtual int64_t Skip(int64_t bytes_to_skip) = 0; | 
| - | 
| // Tries to seek to offset from whence. Returns the resulting offset location | 
| -  // or ARCHIVE_FATAL in case of errors. Similar to | 
| +  // or -1 in case of errors. Similar to | 
| // http://www.cplusplus.com/reference/cstdio/fseek/ | 
| virtual int64_t Seek(int64_t offset, int whence) = 0; | 
|  | 
| // Fetches a passphrase for reading. If the passphrase is not available it | 
| -  // returns NULL. | 
| +  // returns nullptr. | 
| virtual const char* Passphrase() = 0; | 
| + | 
| +  virtual int64_t offset() = 0; | 
| + | 
| +  virtual int64_t archive_size() = 0; | 
| }; | 
|  | 
| #endif  // VOLUME_READER_H_ | 
|  |