crosswalk-project/crosswalk — pull request #2169 by xuzhang (2014-07-04 12:25:00+00:00)
Title: [Tizen] Add signatur data and parser logic

SignatureFile: accoring to widget spec, widget should includes
signature file in the zip. SignatureFile is used to label signature
files in the widget. There are two types of signature files: author
and distributor signatue.

SignatueData: it is used to store values parsing from signature.xml.
The data will be used by signature verifer to validate digital
signatures.