Cleanup CreateBuilder() in tryserver.chromium
Cleanup CreateBuilder() in tryserver.chromium

The VS2010 builders were _still_ not properly building with VS2010.

TBR=nsylvain@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/9219001

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@117800 0039d316-1c4b-4281-b951-d872f2087c98

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