[debugd] convert to SLOT-ed libbase

Make sure we execute pkg-config twice in the ebuild and not once
per object compile/link.  Use the pc files from both libchrome
and libchromeos.  Drop glib-2.0 usage since we only had that for
the implicit dep via libbase (we're using the .pc file now which
expresses that requirement).

BUG=chromium-os:16623
TEST=`emerge-x86-alex chromeos-debugd` still works
TEST=`cros_run_unit_tests --board x86-alex -p chromeos-debugd` passes

Change-Id: I3f6cbfa9a7a38622fe8f80421b034cadc68bdde7
2 files changed
tree: e182b6c4545105e8ebc77f4f5c189d3b61a36906
  1. Makefile
  2. OWNERS
  3. README
  4. doc/
  5. share/
  6. src/