{
  "browsers": {
    "chrome": {
      "browser": "chrome-dev"
      "driver": {
        "type": "adb"
      }
    }
  }
  "env": {}
  "probes": {
    "perfetto": {
      "textproto":
        '''
          buffers {
            size_kb: 300000
            fill_policy: DISCARD
          }
          data_sources: {
              config {
                  name: "track_event"
                  track_event_config {
                      disabled_categories: "*"
                      enabled_categories: "disabled-by-default-v8.gc"
                      enabled_categories: "v8.gc"
                      enabled_categories: "v8.memory"
                      enabled_categories: "disabled-by-default-cppgc"
                      enabled_categories: "cppgc"
                      enabled_categories: "blink.user_timing"
                      enabled_categories: "__metadata"
                      timestamp_unit_multiplier: 1000
                      filter_debug_annotations: false
                      enable_thread_time_sampling: true
                      filter_dynamic_event_names: false
                  }
              }
          }
          data_sources: {
              config {
                  name: "org.chromium.trace_metadata2"
              }
          }
        '''
    }
  }
}