Bump pre-cq launcher timeout to 30 minutes.
Bump pre-cq launcher timeout to 30 minutes.

BUG=chromium:293135
TEST=Unit tests.

Change-Id: I24b6e9ef1a35261dee521fd7fc6c72f81d6dc6df
Reviewed-on: https://chromium-review.googlesource.com/170041
Reviewed-by: Peter Mayo <3d31fdaf44dc55bb1b4f50b19df9bc879177d37a@chromium.org>
Commit-Queue: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite