Convert most run_all_unittests.cc files to use new unit test launcher.
Note that the new code is still behind a runtime flag
(--brave-new-test-launcher), but compiling tests with support for it
will make further testing possible.
BUG=236893, 79359
R=akalin@chromium.org, enne@chromium.org, erikwright@chromium.org, joi@chromium.org, keybuk@chromium.org, sky@chromium.org, thestig@chromium.org, tommi@chromium.org, wtc@chromium.org, xhwang@chromium.org, yzshen@chromium.org
Review URL: https://codereview.chromium.org/23442019
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221464 0039d316-1c4b-4281-b951-d872f2087c98