making GOMA_DISABLED work on all Windows.
making GOMA_DISABLED work on all Windows.

In previous change, I only applied the change to goma canary.
https://codereview.chromium.org/1044013003/

I confirmed it works, let me apply the change to all Windows bots.

Review URL: https://codereview.chromium.org/1129343002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@295200 0039d316-1c4b-4281-b951-d872f2087c98

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