Allows chromoting host to be connected again after connection drops.

BUG=52890
TEST=Connects to chromoting disconnect, and then try again

This allows basic reconnect functions of the chromoting host. We still have the
following problems:
1. We don't have a disconnect command.
2. If we are waiting for client connection to time out we don't allow second
   connection.
3. Need to force a full frame update after a new client is connected.

I am going to solve the above problems in separate patches but this patch will
allow basic reconnect to work.

Review URL: http://codereview.chromium.org/3320003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@58441 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed