How to run benchmarks for media router #

1. Run the following command to find all the avaiable browsers: ./chrome/test/media_router/telemetry/run_benchmark --browser list

2. Run the following command to get benchmarks for media router dialog latency: ./chrome/test/media_router/telemetry/run_benchmark --browser= media_router.dialog.latency.tracing --reset-results

./chrome/test/media_router/telemetry/run_benchmark --browser= media_router.dialog.latency.histogram

The results will be in /chrome/test/media_router/telemetry/results.html