Use installed DBus libraries instead of generating them.
login_manager, power_manager, debugd and shill now expose a client
library with the generated dbus-proxies.h file and the system_api's
installed dbus-constants.h. This patch changes update_engine from
generating these DBus headers to use the installed client libraries.
The client libraries already include the service path string, so we
don't need to include system_api dbus-constants.h in most cases, unless
we actually use some parameter constants defined there.
BUG=b:23084776,b:23560718
TEST=./build_packages --board=link
Change-Id: Idb4501e784ebb5928c92902d114462be57d5826a
27 files changed