I'll be opening separate issues and blocking this one on them

As of now, the persistent failures are

https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus5%20Perf%20(2)
  - host_info failed blink_perf.dom
  - blink_perf.dom.reference
  - power.tough_ad_cases
  - power.tough_ad_cases.reference

https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus5X%20Perf%20(2)
  - power.tough_ad_cases.reference 
  - page_cycler.intl_ko_th_vi.reference 
  - smoothness.top_25_smooth.reference 
  - oilpan_gc_times.sync_scroll.key_mobile_sites_smooth.reference 
  - power.gpu_rasterization.typical_10_mobile.reference 
  - smoothness.gpu_rasterization.top_25_smooth.reference

https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus5X%20Perf%20(3)
  - smoothness.sync_scroll.key_mobile_sites_smooth.reference 
  - service_worker.service_worker_micro_benchmark.reference 
  - v8.key_mobile_sites_smooth.reference 
  - smoothness.key_mobile_sites_smooth.reference

https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus6%20Perf%20(1)
  - host_info 
  - v8.top_25_smooth 
  - v8.top_25_smooth.reference 
  - blink_perf.css 
  - blink_perf.css.reference 
  - blink_perf.events 
  - blink_perf.events.reference 
  - dromaeo.domcorequery 
  - dromaeo.domcorequery.reference 
  - dromaeo.jslibeventjquery 
  - dromaeo.jslibeventjquery.reference 
  - octane 
  - octane.reference 
  - smoothness.tough_scrolling_cases 
  - smoothness.tough_scrolling_cases.reference 
  - storage.indexeddb_endure 
  - storage.indexeddb_endure.reference 
  - blink_style.key_mobile_sites 
  - blink_style.key_mobile_sites.reference 
  - dromaeo.jslibtraverseprototype 
  - dromaeo.jslibtraverseprototype.reference 
  - service_worker.service_worker 
  - service_worker.service_worker.reference

https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus7v2%20Perf%20(3)
  - media.mse_cases 
  - media.mse_cases.reference 
  - page_cycler.intl_es_fr_pt-br 
  - page_cycler.intl_es_fr_pt-br.reference 
  - speedometer 
  - speedometer.reference

https://build.chromium.org/p/chromium.perf/builders/Android%20One%20Perf%20(2)
  - blink_perf.canvas