Use goma for all Linux/Mac LKGR bots.
Use goma for all Linux/Mac LKGR bots.

BUG=none
R=glider@chromium.org,inferno@chromium.org

Review URL: https://codereview.chromium.org/1019803004

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@294563 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build