Fixing issues with builder/tester chaining discovered live on the bots.
Fixing issues with builder/tester chaining discovered live on the bots.

BUG=None
TEST=None
R=cmp@chromium.org
Review URL: http://codereview.chromium.org/7129007

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@88252 0039d316-1c4b-4281-b951-d872f2087c98

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