      const name = event.args.name;
        const events = histogramEvents.get(name) || [];
        if (!histogramEvents.has(name)) histogramEvents.set(name, events);
        events.push(event);
      }
      let processName =
          tr.e.chrome.chrome_processes.canonicalizeProcessName(process.name);
      // Increase the counter even if histogramEvents is empty so that process
      // names of all UMA metrics match.
      nameCounts.set(processName, (nameCounts.get(processName) || 0) + 1);
      proces