Fix JingleSession to properly set initiator field in session.

Previously session-initiate messages generated by JingleSession had
an empty initiator attribute. Also added tests that verify that
initiator field is set.

Review URL: https://chromiumcodereview.appspot.com/9477010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@124081 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed