GTTF: Do not use the new test launcher for ash_unittests and chrome_frame_tests

This reverts parts of the following CLs committed ~week ago:

https://codereview.chromium.org/85503004
https://codereview.chromium.org/86773003

TBR=sky,erikwright

BUG=236893

Review URL: https://codereview.chromium.org/105803003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238895 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238895