perfetto: disable websocket_bridge on Windows
perfetto: disable websocket_bridge on Windows

Bug: https://github.com/google/perfetto/issues/341
Change-Id: I401da5bb8625ba596f85d35cc89afe6186f7d167
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto