Allow methods and signals on the org.freedesktop.DBus.Properties interface.

This is needed to allow cromo plugins to send the MmPropertiesChanged modem manager signal.

BUG=chromium-os:4667
TEST=Build cromo. Compare generated files before and after this change.
Observe that the code generated for mm-modem.xml now defines
MmPropertiesChanged, where before it did not. Checked that nothing
else has changed in the generated code.

Change-Id: Ida5e3d76133f6ed82c2bd49ca1599a0948914aa1

Review URL: http://codereview.chromium.org/6015015
1 file changed