dbus: move logic from Property<> to PropertySet

dbus: move logic from Property<> to PropertySet

Rather than implement Get() and Set() in dbus::Property<> move the
code into dbus::PropertySet and pass a pointer to the property to
operate on from the wrapper call.

The advange of this way of doing things is that it's much easier to
make subclasses, since you only need to subclass dbus::PropertySet;
and ths makes it possible to mock.

BUG=chromium-os:28555
TEST=dbus_unittests

Change-Id: I760ca608d1e0a17422c11e0115c053d98be33fe0

R=satorux@chromium.org


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=144756

[satorux1, 2012-06-28 17:01:27]

LGTM. looks much cleaner!

[commit-bot: I haz the power, 2012-06-28 17:34:10]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keybuk@chromium.org/10698027/7001

[commit-bot: I haz the power, 2012-06-28 18:43:32]

Change committed as 144756