Remove test_type and rf_type argument in each API.

These two arguments are for function delegation. After delegating to
the API, they are useless. Also fixed the style of the docstring.

BUG=chromium:681734
TEST=make test

Change-Id: I762b7d1b334663e602e448604f27e4ef6b62312f
Reviewed-on: https://chromium-review.googlesource.com/428479
Commit-Ready: Chih-Yu Huang <akahuang@chromium.org>
Tested-by: Chih-Yu Huang <akahuang@chromium.org>
Reviewed-by: Joel Kitching <kitching@chromium.org>
11 files changed