Add D-Bus service constants for update_engine.

We'll be using the constants from Chrome.

TEST=emerge system_api libcros
BUG=chromium-os:16564

Change-Id: I6bcfa30dc31998713a0bfb55689ce0cce3de4b68
1 file changed
tree: 36b0c8446e9bbb0bd89042b4ec3e104f95d52218
  1. dbus/
  2. window_manager/
  3. README