Make dbus file descriptor check dynamic

Without this change cros builds from outside the chroot can't run
tracing code.

BUG=None
TEST=None

Review URL: https://chromiumcodereview.appspot.com/10815083

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@148351 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 49cdf6e74c459160788dc9fce00500e13d0d641d
2 files changed
tree: 345ae1467189bf4db0860a1ed0eb49f68bd43fac
  1. base/
  2. build/
  3. dbus/
  4. ipc/
  5. testing/
  6. third_party/