dbus: Fix a bug where we were emitting spurious error messages.

dbus: Fix a bug where we were emitting spurious error messages.

Error messages like "Requested to remove an unknown match rule:
type='signal', interface='...'" were emitted at shutdown of Bus
object if an object proxy was connected to more than one signal of
the same interface.

TEST=changed the end_to_end_async_unittest to reproduce this bug, and confirm that the error messages were gone after fixing object_proxy.{cc,h}
BUG=chromium-os:23382
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=111423

[stevenjb, 2011-11-23 21:24:55]

lgtm with comment.

http://codereview.chromium.org/8681002/diff/1/dbus/end_to_end_async_unittest.cc
File dbus/end_to_end_async_unittest.cc (right):

http://codereview.chromium.org/8681002/diff/1/dbus/end_to_end_async_unittest....
dbus/end_to_end_async_unittest.cc:139: // Copy the string payload to
|test_signal_string_|.
Copy comment invalid.

[satorux1, 2011-11-23 21:47:36]

http://codereview.chromium.org/8681002/diff/1/dbus/end_to_end_async_unittest.cc
File dbus/end_to_end_async_unittest.cc (right):

http://codereview.chromium.org/8681002/diff/1/dbus/end_to_end_async_unittest....
dbus/end_to_end_async_unittest.cc:139: // Copy the string payload to
|test_signal_string_|.
On 2011/11/23 21:24:55, Steven Bennetts wrote:
> Copy comment invalid.

Done.