All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=792006

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=61176a52c0869bed9426245c0904f65b45934490a546a077f6d0d28c849626ef


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

chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-x64-dual

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14e4d244040000

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14e4d244040000

Separate tab icon and throbber into a separate view.
By brettw@chromium.org · Fri Dec 01 00:05:29 2017
chromium @ 0e161fe557328950ff50f966b6c0dab2c7617f30

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

brettw, sky, can one of you take a look at this? Bisect is pretty clearly reproducing a 25ms regression in timeToFirstContentfulPaint at this CL.

Adding kouhei, owner of loading benchmarks, to comment on severity.

I don't see the point of making performance regressions with a bisect 'Available' without an explanation. The CL looks to me like just a refactor so I'm trying the bisect again.

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/15eebdfb440000

📍 Found significant differences after each of 3 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/15eebdfb440000

Add language list and disable button in languages prefs. by googleo@chromium.org
https://chromium.googlesource.com/chromium/src/+/fb178abd808e39b65a0d86c2b999546b16d9c556

Separate tab icon and throbber into a separate view. by brettw@chromium.org
https://chromium.googlesource.com/chromium/src/+/0e161fe557328950ff50f966b6c0dab2c7617f30

[TTS] Add a feature to force a second tap. by donnd@google.com
https://chromium.googlesource.com/chromium/src/+/6bd557ef855e8f0a82b82ae2a4ee1759b6b0257a

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

Probably not my change, especially since it doesn't affect Windows.  Assigning to googleo@ as next most likely, and most able to take action since brettw@ is no longer working on Chrome.

My CL doesn't affect Windows either. It's a Android preferences UI feature.

Reassign to the pmeenan@ to route to the right person or team.

yhirano@ could you PTAL?  Bisect seems to not be isolating it well but looking through the changes it looks like there were a few that you committed around RendererSideResourceScheduler.  Those feel like the most likely causes if they were impacting the resource loading path.

At that time RendererSideResourceScheduler was not enabled fon perf bots. The first CL is https://crrev.com/47b8f2451e900fe2c5fc4d94046925f40fea2fc7 which was landed on Dec 12, so maybe not related?

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/16d3366e240000

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/16d3366e240000

All of the attempts failed. See the individual attempts for details on each error.

Available, but no owner or component? Please find a component, as no one will ever find this without one.