Tweak ObbFile class

* Move error messages around to clarify the errors.

* Add extra error check when reading a file.

* Seek to the end of a file when writing the signature so the users of
  the API don't have to remember to do it.

Change-Id: I2337051b9f9fa8147c5900237deec790dcd92436
2 files changed
tree: ca7e6c249361dd54a35d5f062fb7ad3f4c051acd
  1. awt/
  2. camera/
  3. cmds/
  4. include/
  5. libs/
  6. opengl/
  7. vpn/
  8. MODULE_LICENSE_APACHE2
  9. NOTICE