dbus: ProperySet destructor must be virtual

clang requires us to have a destructor for this "complex" class,
but that destructor will need to be virtual later.

BUG=none
TEST=git try -b linux_chromeos_clang

Change-Id: Ia0efd34f205ab090cd7f2092d47fc0288b1f4e0c


Review URL: http://codereview.chromium.org/9420027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@122417 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 8acfaf570e7b0af382825605ec5134ebc97adfc8
1 file changed
tree: 0f6fe783da863c29ec60da92ded22f272976ae25
  1. base/
  2. build/
  3. dbus/
  4. ipc/
  5. testing/
  6. third_party/