esteid-browser-plugin: Check pininputdialog return code before handling the PIN
esteid-browser-plugin: Check pininputdialog return code before handling the PIN

When the pininputdialog was invoked synchronously, the code failed to
check what button the user had pressed and handled Cancel the same way
as the OK button.

http://code.google.com/p/esteid/issues/detail?id=133

git-svn-id: 804e3bcc3d5e1f71d31da0afe626cb969e0fc117@3774 0d7e1ef0-d974-fc83-f0b3-ccc071561e0e

kalev/esteid-browser-plugin,kalev/esteid-browser-plugin,kalev/esteid-browser-plugin,kalev/esteid-browser-plugin,kalev/esteid-browser-plugin,kalev/esteid-browser-plugin