Optimize tryserver.chromium.win slave pools:
Optimize tryserver.chromium.win slave pools:

- separate CQ builders from optional builders
- reduce number of pools

BUG=none

Review URL: https://codereview.chromium.org/810773003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@293414 0039d316-1c4b-4281-b951-d872f2087c98

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