Adding branch logic to the IRT archiving (so we can run it on the branch builder).
Adding branch logic to the IRT archiving (so we can run it on the branch
builder).

BUG=http://code.google.com/p/chromium/issues/detail?id=90273
TEST=None
R=noelallen@google.com
Review URL: http://codereview.chromium.org/7482024

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@6237 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client