Update gyp files to depend on metrics' standalone ebuild.

Metrics is now installed by chromeos-base/metrics.
Platform2 packages should depend on it through the variable:deps mechanism
instead of depending directly on metrics' gyp file.

BUG=chromium:387923
TEST=Build platform2. metrics gets installed and the tests succeed.
TEST=Trybot run on daisy-release, lumpy-incremental-paladin, link-release,
  duck-release, x86-mario-release.

CQ-DEPEND=CL:205312

Change-Id: Id6fbb81234d9f874e034afcb3df16069608f32e7
Reviewed-on: https://chromium-review.googlesource.com/205321
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
1 file changed
tree: 50136329ead3f18165ec39b29ec974fe2d633f3a
  1. buffet/