All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=875981

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=055c1a2b80fa239bee885937f43ca341e7769d1b01cf94db3d92a036ebaa44c6


Bot(s) for this bug's original alert(s):

Android Nexus5 Perf

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/16c14ed6640000

📍 Found significant differences after each of 5 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/16c14ed6640000

Only invalidate property trees and compositing for PaintLayers when needed, on style change. by chrishtr@chromium.org
https://chromium.googlesource.com/chromium/src/+/ba8c87a1a32815e6061b7c38d31ddfbbaac7a124
27.47 → 32.05 (+4.586)

Revert "Fix ExtensionWebRequestApiTest.WebRequestUnloadImmediately with network service" by cduvall@chromium.org
https://chromium.googlesource.com/chromium/src/+/dd32a2ee991e8110ac5c944f17970993a67c955d
32.05 → 32.35 (+0.2937)

[Autofill Assistant] Introduce Autofill Assistant in src/chrome by gogerald@google.com
https://chromium.googlesource.com/chromium/src/+/1ee97f3a14314e8ec6ea8077dd292cc3f0755b2a
32.35 → 32.9 (+0.5539)

[Autofill] Enable 'Disallow Elo/JCB' features for waterfall testing config by jsaul@google.com
https://chromium.googlesource.com/chromium/src/+/54b9aad4c54cab45b206fdec5d8a2168725f3884
32.9 → 31.95 (-0.9553)

[OnionSoup] Remove the Mojo method ServiceWorkerFetchResponseCallback.OnResponseBlob by leon.han@intel.com
https://chromium.googlesource.com/chromium/src/+/03381bae89ae5c0aca0208c394f9a831507e0d1f
31.8 → 32.18 (+0.3845)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions