ts_mon: use python3 aware import in proto files

Bug: 1010816
Change-Id: I308c51d11b2252ddc5d5d95ee429605acf445a85
Reviewed-on: https://chromium-review.googlesource.com/c/infra/infra/+/2279396
Reviewed-by: Paul Wankadia <junyer@google.com>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#32947}
Cr-Mirrored-From: https://chromium.googlesource.com/infra/infra
Cr-Mirrored-Commit: efe63f574e2b6cea2a48ef1ee472284b5796d41e
7 files changed
tree: d350fa879fbc590ce5801c2c01605f898ac97db9
  1. .coveragerc
  2. infra_libs/
  3. setup.py