dbus: Handle NameOwnerChanged in ObjectManager

dbus: Handle NameOwnerChanged in ObjectManager

Since the ObjectManager class managers the set of object proxies and
properties structures for remote service it needs to handle the
NameOwnerChanged signal, deleting the current set of objects when a
previously owned name changes to a new owner (or is released) and
re-requesting the set of managed objects when a name is claimed by
a new owner.

BUG=346975
TEST=dbus_unittests

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=255495

[satorux1, 2014-03-06 04:49:25]

LGTM

[keybuk, 2014-03-06 18:17:31]

The CQ bit was checked by keybuk@chromium.org

[commit-bot: I haz the power, 2014-03-06 18:21:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keybuk@chromium.org/177703006/1

[commit-bot: I haz the power, 2014-03-06 19:07:58]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-06 19:07:59]

Retried try job too often on mac_rel for step(s) telemetry_perf_unittests,
telemetry_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[keybuk, 2014-03-06 19:13:41]

The CQ bit was checked by keybuk@chromium.org

[commit-bot: I haz the power, 2014-03-06 19:20:38]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keybuk@chromium.org/177703006/1

[commit-bot: I haz the power, 2014-03-06 21:01:07]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keybuk@chromium.org/177703006/1

[commit-bot: I haz the power, 2014-03-06 21:55:20]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keybuk@chromium.org/177703006/1

[commit-bot: I haz the power, 2014-03-07 02:24:35]

Change committed as 255495